Bash script execute commands after ssh. Bash script: for loop after two ssh commands.

Bash script execute commands after ssh Viewed 1k times 1 I sometimes use ssh to run multiple commands on a remote host like this: ssh my_user@my_host "command1; command2" utilizing double quotes to send both commands to the remote machine. currently this is what i have so far: #!/usr/bin/expect -f spawn ssh root@sc expect "assword:" send "password\r" expect "#" send "cd /data2/someDirectory\r"-----> don't see this command being executed and the output Like @Diego Torres Milano said, you would need to write a script locally that could do the interactive part, then invoke that via a remote script. But I'm writing the bash script for the third time in my life so I'm not sure. ) debug1: Authentication succeeded (publickey). Change your "Execute the script" task to - name: Execute the script command: sh /home/test_user/test. It will have the interpreter to continue executing the next command in a #!/bin/bash USER='scott' PASS='tiger' ssh -t [email protected] "sudo su - http" This Works, but I was trying to get it to run a script afterwards, and if I do, using -c or < The script does a grep like this: @MattiaRasulo What do you call “an EOF series of commands”? Do you mean commands given in an “here document” (<< _FOO_ _FOO_)?I guess you can wrap that with a "$(cat )" to give its contents to ssh as its first positional parameter, but then why not directly write the commands in a string (like in the example from my answer, but possibly with " instead of ' if need be) In my shell script I am running a command which is asking me for input. Similarly, the screen -ls is not executed inside servername2 but in my own If ssh does not have a terminal associated with it but DISPLAY and SSH_ASKPASS are set, it will execute the program specified by SSH_ASKPASS and open an X11 window to read the passphrase. Run command on server using Plink and keep it running after disconnecting. Is there a way to run commands automatically when user logs in with SSH to Windows Server? I tried to implement this using the AutoRun in Command Processor registry, which runs commands when any cmd. The key is that you simply run the command on the remote host via ssh , and capture its output on the local host. If I run the same command from the terminal it works fine but running it in a bash script it doesn't. If you want to run the shell after the cd command, you need to add it explicitly to your cmd. For OpenSSH you can specify a LocalCommand in your ssh config (~/. bashrc, yet the answer there doesn't work for me. What is the correct way of calling a function from a script after ssh? nohup is needed if you want your scripts to run even after the shell is closed. Commented Sep 18, 2022 at 6:33. How can I give the command the input it needs automatically? then exec ssh-agent bash -c "ssh-add ; $0" echo "The SSH agent was awakened" exit fi. 1. This allows you to use the pre-xfer exec and post-xfer exec options in /etc/rsyncd. 4. When I use below command it doesn't prompt me for password and then I can run the shell script with report user. You could run screen via ssh to start the command (concat. This means that: The whole ssh line is normally parsed by your local shell; characters like |, ;, *, ", $ or space mean something to the shell, they won't get to ssh, unless you quote or escape them (with few These commands work fine on there own but together in the script it just hangs. txt, like:. ). exit asa the command is issued but the commands should keep running on the server. Why does my Expect The main thing to change is getting rid of the semicolon before the "** run" (as well as using a real command). at the end of the file add below code. 1) Cannot execute SUID bash script with sudo as SSH command. cd /my/path ; /bin/bash Also the -m implies "nopty"/non-interactive mode. When I execute the loop, ssh command works fine for host1, but for host2 I see: bash: host2: command not found Could you tell me where can be the problem? bash; Share. Everyone just forgot disown. So here is a summary: & puts the job in the background. For those that stumble across this question, I'll include an answer that uses Fabric, which solves exactly the problem described above: Running arbitrary commands on multiple hosts over ssh. Execute simultaneous scripts on remote machines and wait until the process completes. The best advice for complex operation on the remote-host is the write a script and save it on the remote host, then you can simply call the script by ssh you@somehost 'bash scriptname'. Does bash script also need this explicit exit? linux; bash; shell; ssh; The commands following ssh machine in a script are not run on the machine. (Some programs don't like having stdin closed) while read line do ssh server somecommand </dev/null # $ cat remote-box-commands. com ssh -t -t virtualHostName '" declare -a arr=(" Bash script: for loop after two ssh commands. You can create a bash alias as well so that you don't have to run the whole command again and again. – Dawid Zbiński. disown removes the process from the shell's job control, but it still leaves it connected to the terminal. In step 3, I am able to loin to another server but it stops there. Here is a simplified example that illustrates what I have tried: If you have this command. The ssh session will only close when the remote SSH server sees an end-of-file condition on the standard output of the commands run in the script. The first is to run interactive bash after the tail will exit (the bash in the end) and then you need to allocate There are a number of ways we can run an SSH script of arbitrarily complex commands without using an interactive shell. pub How can I spawn a process after a delay in a shell script? I want a command to start 60 seconds after the script starts, but I want to keep running the rest of the script without waiting 60 seconds first. Something like if [[ Discover how to execute multiple commands over SSH with various methods like semicolon-separated commands, double ampersand-separated commands, and more, to efficiently manage remote systems and streamline You can pass a script and have it execute ephemerally by piping it in and executing a shell. You don't need to use expect to do this. /run_audit. It means you'll have only the last file running. Expect script for remote SSH login and executing commands. If you specify a command (e. bash_profile. SSH and run commands mid-script. Modified 6 years, 11 months ago. sh in the same server - server01; b. The problem is the psql command prompts for a password, and my sql file gets piped into that. and the & is not necessary in RUN since you execute the command with &. You could do that by I'm currently trying to ssh into a remote machine and run a script, then leave the node with the script running. bashrc will get called if you open up a Gnome Terminal, for example, AFTER having already logged in. We learned the usage of commands like ssh for the Linux variant and plink for the Windows variant machines for remote server management. Script only doing successful ssh but not running sudo and other echo commands. Run date and hostname commands: $ ssh user@host "date && hostname" You can run sudo command as follows on a remote box This assumes ~/. cat command. Above line will start the expect script upon terminal launch. For example if command. For those who logs in i put my commands at the end of . ~/. sh' | ssh host4 'bash -s'. Bash script execution after login success does not trigger. How do you change user and execute a command in a bash script ? I need to login to a VM and execute some command there. The first will run the shell regardless of whether the first command succeeds. In general I would do: ssh user@ip "command" >> /myfile. The command in the file is not executed on command line, but the same command works perfectly fine when I execute only the command on command line. The real problem is I am putting this command in . secrets pre-xfer exec = General observations. sh` eval `cat foo. I've heard multiple answers of rights and wrongs and I still don't know if its possible. For example: The first is to run interactive bash after the tail will exit I just don't understand why you don't write your commands in the profile of your login shell and just start a simple ssh without any commands to run remotely. Execute Perl script on remote server from local machine. I. Main idea of this script is to, login to each host via ssh and get uid of user, service user that I trying to run this script, has already deployed ssh keys and provide sudo (8 Replies) To check if there was a problem connecting and/or running the remote command: if ! ssh host command then echo "SSH connection or remote command failed" fi To check if there was a problem connecting, regardless of success of the remote command (unless it happens to return status 255, which is rare): I am trying to execute a command in a remote machine and get the output. ssh. Modified 3 years, 3 months ago. 2. ssh -t jobs@backup sudo /scripts/backup. txt | grep string. Linux- If you want to generate a string you can pass over ssh to run a series of remote commands securely, this requires correct shell quoting for the command inner command (which is necessarily invoked with a shell), and not using shell=True for the outer command (thus allowing the use of a local shell -- with the security implications of same -- to be avoided): After the user enters the necessary information—by quitting vim or pressing return on a prompt—the script should continue to run like normal. But this is not getting successful. Using ssh in perl script. Bash Script Quits After Exiting Run the command directly, like so: ssh -t host4 bash . I'd change the script and would run the ssh command with the the command to execute. You have observed exactly this. cat script. Execute command inside a shell script on a remote machine and get output on local machine. Also change the permission of keyfiles (id_rsa, id_rsa. The shell output shows the following: The remote machine is up; The script is on localhost and the ssh command is in a function called doit Have a look at this tutorial After doing so, your scripts will run without the need for entering a password. Try the following command, and make sure that thats the path from your home directory on the remote computer to your script. Install OpenSSH and enable SSH service. But that gave me the idea that I might somehow be able to get that preceding process to wait for the ssh session to end. Here's my code: #!/bin/bash echo "SSHing. It also I have a text file in which I have a list of servers. sh: #!/bin/bash echo foo Without having to scp the file, how could I execute the script stored in foo. – I use SSH with "authorized keys" to run commands remotely. I have also tried running /bin/bash command or ssh-ing to localhost, but since we use different ports then the standart ones, I will either have to search for better solution or "If a -- (two hyphens) are found on the command line, any arguments after this are passed directly into the ssh executable. How can I run some commands automatically after waiting for my SSH connection to be established with a while loop. sh and it should do it. /ssh. Ask Question Asked 6 years, 11 months ago. If you feel you need to abbreviate/censor the script, please do this before running it to get the output, instead of running your actual script and then posting edited code that you've never actually run. ssh machine ls # or echo ls | ssh machine I want to run some commands on another machine after I logged in through ssh. Unfortunately in the line 8 of the script, after sending the password, I just get logged into the server as I would have been logged manually (I can sshpass -p *YourPassword* ssh root@IP. For preserving local filesystem storage, each script, after it has been modified with user content (for cronjob that could be the command and cron expression) is represented Hello, I am running into few issues, please suggest me what I am missing. zprofile or ~/. sh ssh-session will be closed immediately. I can login successfully, but 2 or 3 seconds later, it automatically logout me from the remote server. Following is my bash script, how @MattiaRasulo What do you call “an EOF series of commands”? Do you mean commands given in an “here document” (<< _FOO_ _FOO_)?I guess you can wrap that with a "$(cat )" to give its contents to ssh as its first positional parameter, but then why not directly write the commands in a string (like in the example from my answer, but possibly with " instead of ' if need be) I've been struggling with this problem when writing a bash script. Following Double SSH and execute interactive shell, I need to run two type of loops after two ssh commands: #!/bin/bash/expect ssh -t -t server. This should be enough for simple commands, like ls, cd, I have a function in my zsh source file ~/. sh For an encore, modify the shell script so it reads options from the command line or a configuration file instead of from stdin (or in preference to stdin). (I want to stay logged in after the command has finished. Shell scripts will run each command sequentially, waiting for the first to finish before the next one starts. If you want run_server and run_process2 to continue running after the ssh session ends, you have to make sure those processes aren't holding open the script's standard output. ls ; bash above) the SSH server will not provide a pseudo-terminal. . . You actually do not want to execute echo after bash - you want to execute echo within bash. 3 steps : install your public key on all 4 machines (a, b, c and d) . How do I write a command that pipes after I type in the password? ssh server "psql -W -h db_host -p 5432 -U db_user -d postgres" < staging. How do I run those commands on How to run the script automatically in server system? You can do so by adding the following parameter to your config file (/etc/ssh/sshd_config). ssh/config). This method will run a single script using sudo after ssh: Let's assume we have a "remote" user with sudo capabilities and we have a script we want it to execute as root. The ssh command can take additional arguments of commands you want to run via the SSH connection. exe [email protected]-m c:\local\path\commands. Now I would like to access an environment variable in one or both of the commands. Then, after the tunnel is established, your script resumes execution on the next line on your machine. No @Dmitri T However from UNIX box I login from my user "a. command1 command2 There is no need for ; if the commands are on separate lines. If it fails, the SSH client will return the exit code of the failed command. I want to to execute remote command via ssh under the full interactive shell. I don't know much about bash and expect. sh will login to another server - server02 and run the commands that follow. Related. Generate SSH key pairs to execute remote commands from the local server to avoid entering passwords. #!/bin/bash Execute the script/commands using I want to login to an interactive shell on a server using SSH and, after logging in, execute two commands. I am running a CentOS 7 VM that I want to set a static IP to. I guess this has something to do with ssh writing something What the -m does is, that it makes PuTTY instruct the SSH server to start that command(s) INSTEAD of a shell. So: you need a program (shell script or any other kind) which will output the password. Either specify the commands to run as an argument of ssh, or alternatively, run ssh and make it read the commands from standard input, and send the commands to it. profile (or ~/. Then I execute two commands on the server: first the thing I wanted to do prior to opening the interactive shell (in my case, changing directory to a specific folder), and I have a bash script I'm using to connect to a remote server via ssh. profile is not read. You can pass the flags -fN to ssh (-f is for fork into background and -N is run no command). ssh $host #some command the script will SSH in, wait until I manually exit, then run the commands. The command works when executed separately via SSH command line. Write your ~/send. bash script to ssh multiple servers in a Loop and issue commands. I am running this script on a linux host. function cr() { ssh -p 5022 [email protected] ssh servername2 screen -ls } . I sometimes use ssh to run multiple commands on a remote host like this: ssh my_user@my_host "command1; command2" utilizing double quotes to send both commands to the remote machine. You type the "disown -h %1" command (here, I've used a "1", but you'd use the job number that was displayed in the "Stopped" message) which marks the job so it ignores the SIGHUP signal (it will not be stopped by logging out). There's race here: bash exits after nohup starts. Viewed 13k times 1 . And of course it doesn't easily @davidlt: when constructing an SshShell, there is now the option to set the shell type. sh - #! /bin/bash # ssh_exp <commands> ssh_exp { . bash_logout, the problem is that if the user close the terminal instead write exit this file is not executed. After execution of the script local_bash_script. I run it locally to do something on a remote server (represented by 'echo "Hi"'). , by connecting with I don't know how ssh exactly operates, but your script is written in a way that it will wait until the ssh command finally terminates. bashrc is sourced from your ~/. It should be executed on the remote machine and then I should get the shell, as if I had logged in normally. If a minimal shell is used by passing in shell_type=spur. text contains: . sh that will do the following steps - Run few commands; Call another shell script b. If you run this command by itself sudo su tom; cat /home/user/file. As others have stated, you can use ssh. It runs over the TCP port 22 with SSHv2 as its latest The script looks like this: #!/bin/bash #Script file for ssh # #put your commands here echo "test" > /tmp/test. The commands following ssh machine in a script are not run on the machine. The end product is that commands were executed for the user without them needing to be aware that it was through a remote connection. /ssh_util. Also i cannot use any other tool, i cannot bring/install anything on this machine, only useable tool is GNU bash, version 4. 3. Commented Mar 1, How to run a script on ssh login and run another script after the first terminates? 1. That doesn't seem to be working. But ssh is not one of them, it's a regular command. This "command_must_be_run_root" is a command that has to be run as root only; It also has arguments I have to pass in. e: Perl, Python, Ruby, Bash interpreter), 2° starts remote interpeter over SSH, 3° send all the script body over SSH. , run a remote command under the login shell, with some parameters. txt will, in your case, contain a path to your shell script, like: /home/user/myscript. Expect ssh script (execute command on remote machine) 1. ssh kev@server1 '. These fall under two main approaches: copy the How To Run Multiple SSH Command. the problem is that ssh close the connection once the command is executed, however - my command sends the output to the ssh channel via another programm in the background, therefore I am not receiving the output. Otherwise it's going to spawn an interactive shell and wait for you to close it. If you want to run all of the files, you need to execute the nohup command as part of My goal is to open a new terminal window, SSH into a remote machine in that window, prompt the user to continue, and then execute a command. For example, in /etc/rsyncd. Run a perl script inside another script using ssh. bashrc'" bash script execute commands after ssh. I ssh to a server then want to run a block of script. To make the function definition permanent, put it in your In your shell script you can use it to run commands on your host machine like this: example. Ask Question Asked 6 years, 8 months ago. Please help me out. Remedy: ssh example. Now try the following command this worked for me. See my answer to this U&L Q&A titled: How to properly copy private keys from remote Expect ssh script (execute command on remote machine) 2. How to run command after remote login? You need to do two things. Once fabric is installed, you'd create a I'm using "sshpass" to pass a password into my ssh command; I'm SSH'ing into the new server as the "test-admin" user; once in the server, I am running the command "sudo su command_must_be_run_root --arguments. 2(1)-release. A small sample program to reproduce the problem. Then will it continue and run your last line (osascript). ssh/environment. ls -lart cd /tmp uname -a This will let you do all You can flesh this out by setting a timeout and handling things that can go wrong (see snippet above). I want to run a script a. mymachine() { sshpass -p *YourPassword* ssh root@IP } source . Here's the idea: #!/bin/sh # Echo A 60 seconds later, but without blocking the rest of the script sleep 60 && echo "A" echo "B" echo "C" I cannot cancel ssh session after command run as one thread suggested, because i need an output and i cannot use parallel gnu suggested in other threads. But for that to work you also need the system-wide option (in /etc/ssh/ssh_config) PermitLocalCommand to yes. login depending on your login shell). On the other hand sole ssh bla@bla allocates a This script performs this operations: 1° catches first line #! to get interpreter (i. Probably will only work if the remote host is set up to allow password-less sudo for user xijing, but none of my hosts are set up that way, so I can't test (you host ggzshop probably can't / shouldn't be set up that way, either). If I just do. sh) Run two java programs in a bash script after ssh. g. In the first case you still get some output from the ls -l command (even though the cd failed - probably the home dir of the you user) and in the latter case the ls -l command is skipped because the first operand returned Thanks for a quick response. sh script on a. Using nohup (no hang-up): The nohup command allows a process to continue running in the background even after the SSH session is disconnected. I have to hit ctrl-c to exit the script. Any Linux distribution. sh Using a Here Document: Execute multiple commands on a Yes, you're doing it the right way. This works: ssh user1@server -t "cd /home/user2; bash --login" None of the following work: ssh user1@server -t "cd /home/user2; bash --login -c 'source /home/user2/. conf: [myTransfers] path = /path/to/stuff auth users = username secrets file = /path/to/rsync. All is fine except when I do it in a while loop. SSH stands for Secure Shell, is a cryptographic network protocol that runs at layer 7 of the OSI model for secure network services over the insecure network. I need to write a script that will SSH into a remote host, then run certain commands on that remote host, then exit. exp. The failing command: ssh -v -v <username>@<server> uptime (also tried echo hello etc. Something like (xterm -geometry 70x70-0-0 -e ssh -i key1 [email protected] **run python file on this instance**) & (xterm -geometry 70x70+485-200 -e ssh -i key1 [email protected] **run node file on this instance**) & (xterm -geometry 70x70+0-0 -e ssh -i echo pass | ssh -tt user@server "sudo script" Advantages: no password prompt; won't show password in remote machine bash history; Regarding security: as Kurt said, running this command will show your password on your local bash history, and it's better to save the password in a different file or save the all command in a . I'm trying to read the server one by one from the file, SSH in the server and execute ls to see the directory contents. I have gone through all question related to the same topic but did not find any solution with EXPECT. sh executes all the commands in script. Here is a simplified example that illustrates what I have tried: For example, compare ssh [email protected] "cd /non-existant ; ls -l" to ssh [email protected] "cd /non-existant && ls -l". It gets executed on the local machine after authenticating but before the remote shell is started. Expect ssh script (execute command on remote machine) 5. Unable to SSH a script of bash commands via expect. For a long time I thought this was some kind of ksh weirdness, but I now discovered bash does in fact behave identically. [[. Neither works. text file in which you have written all the commands in column (you can modify them with vi or vim and put them in column), you don't even need to do a loop, you can simply do: . If you want to execute a script/commands within a different shell, you have three options: Specify the shell that the script needs in the script itself using shebang - This the the right way for scripts. This is the command I use: I do have new lines embedded in my shell script after every command. Update. sh on a remote machine? I have tried the following (with a few variations) to no success: $ ssh root@remote eval `cat foo. The loop terminates after completing any iteration with an ssh command. In a bash script, I use a ssh command as such ssh mylogin@myremotemachine '*some command/command list separated with ;*' The local and remote machines have keyless ssh. Running SSHPASS=password sshpass -e ssh -tt -o "StrictHostKeyChecking no" [email protected] 'echo "password" | sudo -Sv && bash -s' < script. bash_profile There are several options depending on how you want to run your remote script. txt ; grep string " When you run ssh example. No, I want everything to be automated. sh . If you're using openssh, you need to append your public key to . sudo apt-get install sshpass. I tired by putting the password in the command line itself. If instead of using rsync over SSH, you can run an rsync daemon on the server. com -t '. bash | ssh -t vivek@nas02nixcrafthomeserver. Basically, I need the following two cases to work: I have a bash script. Then exit to come out of remote session and continue on local session. sh & EOF echo 'done' After running nohup, it hangs. This allows you to pass any arbitrary commands to do things such as reverse tunneling down into the ssh program. Step #1. The script should warn admin on connections authenticated with pubkey, so the user connecting shouldn't be able to skip the execution of the script (e. Execute the commands we want. Use Expect in a Bash script to provide a password to an SSH command – Jetchisel. What this does is essentially log you into the remote computer with the listed command as your shell. For example, a task to Reload Apache might look like this: What I want to achieve using a bash script is, using a loop, ssh to servers mentioned in a file ( this is done ) execute update and upgrade command on each of them. They will be run on the local machine once the ssh exits. For instance: pwd; ls -al; date; uname -a. There are some keywords in Bash that affect parsing what's after them, e. If you want to run a script after any user logs into your # if the user has not You press ctrl-Z. Yes, it’s possible using ssh client. #! /bin/bash sshpass -p 'password' ssh user@host command I am aware of the security issues but its not important now. But, for security's sake, you don't want to do this for root users! SSH commands via bash script. Hot Network Questions I would like to execute a ssh command and pipe the output to a file. ssh bla@bla "ls ; bash" This doesn't disconnect after running ls, but I don't get a full terminal interface, just some bare bones command line that doesn't show the me@machine:~$ thing. However, if you're running a script, you may want to setup ssh to login without a password. Forces the In this article you will find the examples of how to execute a remote command, multiple commands or a Bash script over SSH between remote Linux hosts and get back the SSH sets the $SSH_CONNECTION variable, which can be used in place of your $SSH_LOGIN in your . I believe ~/. expect 192. ssh/authorized_keys (see OpenSSH) , if you're using dropbear it's a bit different. Unfortunately, it runs the command before the ssh session is established, not afterwards. file perl script to execute ssh command without using password. To do this I'd recommend using ssh-copy-id. The approach works in many cases, except when there's interactive behavior since standard input is already in use. cat some_script | ssh server 'bash -s' You can also use bash Here docs to achieve the same thing, shell script ssh command not working. In your script, the ssh job gets the same stdin as the read line, and in your case happens to eat up all the lines on the first invocation. Makes it block on attempting to read input, and; Makes the shell not wait for its completion. conf to specify a command to be run before and/or after the transfer. bash | ssh user@nas02nixcrafthomeserver OR $ cat remote-box-commands. Create on remote server rc file inside user's . I created a simple script and it shows the ssh command fails before it reaches the remote machine. If you need multiple users to run this script, use a %groupname instead of the username1 Share @JoseSerodio That would not work for the ssh scenario, for example (or you would have to scp the script to the remote host first), and unattractively complicates the simple case when the commands are just a few trivial ones (then you have to manage two script files, and make sure the calling script knows the path to the other one). Describes how to run or execute a command using SSH with various command-line techniques on Linux, macOS, BSD, and Unix. Bash, Expect : Execution of command after SSH is not working. bash -c "ssh -t user@computer 'cd /; sudo my-command'" and OP want a way to execute remote command from bat script. exe is started, but due to the complexity of the script in question, this just ends up in endless recursion every time no matter how I try to fix the situation. The system suspends the running program, displays a job number and a "Stopped" message and returns you to a bash prompt. So once your command finishes, so does the session. Remember to replace 'pass' with the server password and 'user' with the I have a script test. That works, however I want the script to immediately pass the command of cd /some/dir after connecting. /etc/profile; . sh and I am trying to ssh and call that scrip't function in the same script: #!/bin/sh testme() { echo "hello world" } ssh myserver "/opt/scripts/test. I've been testing bash script execute commands after ssh. I want to run a postgres command with ssh that pipes a local file. Remove the "interact" statement to have the script exit when done (you could use a shell loop to execute this for a number of hosts/devices). so yes. I've tried adding an explicit exit at the end of the here doc and using "-t" argument for ssh. I have a shell script of the following type: #!/bin/bash ssh [email protected] echo "Hi" exit . ShellTypes. I've used this to send commands routers to update static routes, but it has many other uses. zshrc:. The second way will run the shell only if the first command succeeds. echo "ls -l; echo 'Hello World'" | ssh me@myserver /bin/bash Naturally, the "ls -l; echo 'Hello In this article, we saw how to run the scripts in remote machines through SSH. I want to do this flow :-> ssh to server (using key)-> go to specific directory-> more file. When you specify a command to run remotely (with or without -t), the ssh daemon starts an ordinary shell, so your . My script will then terminate the ssh session. Can someone help? Am I missing something. Step 1 is complete when you can log in to a, then from a to b, from a to c, and from a to d without any password prompt. I currently have: gnome-terminal -t "MyWin" -x bash -c For those that stumble across this question, I'll include an answer that uses Fabric, which solves exactly the problem described above: Running arbitrary commands on multiple hosts over ssh. – user556625. However, it appears that I cannot capture the output of my command (SSH) to a variable at all. Ubuntu: sshpass run remote bash script. zlogin, obviating the need to use ~/. I've been struggling with this problem when writing a bash script. Basically, I want to measure the time of a program on a remote server, so I use the command: /usr/bin/time -f %e sh -c "my command > /dev/null 2>&1" to execute the program. Rankin From the MobaXterm User Manual entry about Execute Command: Specified command will be executed on the remote server after connect. For preserving local filesystem storage, each script, after it has been modified with user content (for cronjob that could be the command and cron expression) is represented I want run some commands right after login into remote server. pub) as 600 for public key and 400 for private key for security of modification. 1. sh file and then executing this shell script. Currently, After ssh -L 8888:localhost:8888 ubuntu@address, your script founds itself on the remote server. txt user@address -p 22 "cd /some/path/to/directory ; more file. e. SSH in shell script with password. You can specify multiple commands and separate them with ";" or "&&". bashrc but for those who logs out i was doing the same but with . sshpass -p pass ssh -t [email protected] 'ls; bash -l'. I am creating a restricted user without shell for port forwarding only and I need to execute a script on login via pubkey, even if the user is connected via ssh -N user@host which doesn't asks SSH server for a shell. sh but, after completion, the terminal stays inside the VM, irregardless of whether I have the exit command The point is that you ned to pass the script you want to run as a parameter to ssh. Is there a way to run remote bash scripts interactively over SSH? Different methods to execute long running commands over SSH. py, and implement tasks that can be run on your remote hosts. I have tried implementing below shell script but unable to get the content. ssh user@host 'bash -s' < local_script. Also, after installing program ou I want to send a script on the server through SSH, run it and don't worry about the rest -- I curl my server after a script has finished running (sort of like a webhook). Luckily, linux has a tool which can easily be installed via a package manager called expect which has the ability to write logic to execute multi-step interactive scripts. s And I SSH into the server as following: ssh -t Linux: Prevent a background process from being stopped after closing SSH client; Getting ssh to execute a command in the background on target machine; Use SSH to start a background process on a remote server, and exit session; TL;DR - use nohup How to run a command in bash script which is not stopped when the script exits? 2 How not to close process, started from ubuntu terminal, and continue to execute another commands from terminal? I am looking for a way to execute a local command when logging into a remote machine via SSH. Ask Question Asked 8 years, 6 months ago. bash_profile or ~/. 168. However, when I run it, I see the prompt on the remote server -- so the 'exit' command is not executed. minimal, then only the raw command is sent. pem [email protected] cd /some/dir read Say I have the following Bash script stored in the file foo. For example: ssh { command ssh "$@"; echo foobar; } Now, you can run: ssh mysite after you exit from the ssh session, echo foobar will be run. If you want to execute something on a remote server after ssh logging in, just create ssh rc file. (or make it executable on the remote host and you can drop bash) – David C. sql Where username2 is the user you want to run the SVN command as and username1 is the user running the script. sh: Run commands from a local file: ssh I am trying to run a sshpass command inside a bash script but it isn't working. To use an interactive shell you local_action runs the command on the local server, not on the servers you specify in hosts parameter. To avoid waiting for ssh to return, write a & at the end of the ssh line. txt # #exit by calling a shell to open for the ssh session /bin/bash Don't forget to chmod the script sudo chmod +x /usr/bin/ownscript Building on dogbane's answer, a complete solution looks like: ssh -t user@server 'cd /a/great/place; bash' Here I use -t to force the allocation of a pseudo-terminal, which is required for an interactive shell. Local Script: Local script must start with #!/path/to/interpreter - #!/bin/sh for Bash script - #!/usr/bin/perl for Perl script - #!/usr/bin I am trying to create a bash script to ssh into a session and run a command then exit out of the session. com, the ssh daemon starts a login shell for you, and the login shell reads your ~/. vmalho" to report user in the following way. sh; testme" But I keep getting testme command not found. e. With this specific example, however, you should consider moving/deploying the script to the target server and invoking it over SSH, as combining all of those commands will result is a large and unwieldily SSH command. sh' Also, the script has to be on the remote computer. chmod 600 id_rsa. You can't run a local script on a bash script to ssh and run commands. touch ~/. Just skip the sudo part and ssh to the host as the "correct" user with permission to those files (which should not be root). In this article, we will see different ways of running remote commands locally using ssh. Once fabric is installed, you'd create a fabfile. sh | ssh me@myserver /bin/bash Cheers! I am using bash script to execute command line with pipe after SSH. #!/bin/sh ssh -t -t rxapp@$1 'if [$? -eq 0 ]; then echo "SUCCESS" sudo /etc/init/ntp $2 else echo "FAIL: Couldnot connect to remote server" fi' Here $1 and $2 are given on command line . Using 'expect' command to pass password to SSH running script remotely. ssh directory:. Solution: Close stdin for ssh, or better redirect from /dev/null. cd ~ sudo nano . You can either join commands with ; or have them on separate lines: command1; command2 or . /test/foo. Now your script builds the command in the for loop, but doesn't execute it. " This is Executing a local script remotely: Run a local script containing multiple commands on the remote system. Pre-requisite. Have the command copy the file over, load the file functions, run the file functions, and then delete the file. So read line only gets to see the very first line of the input. so, I am using this script below: ssh -i key. #!/bin/bash # Define your function myfn { ls -l; } but I have a lot of installation scripts that just copy themselves over using ssh. sh OpenSSH has an option called LocalCommand that runs a command on the client side when you make an ssh connection. (By default it is set to no. bash_profile will be the script that is invoked for a login shell like ssh. Leverage an alias or better a function. I am trying to write an expect script which would ssh into a server, send sudo su, then check the iptables status and put the output in a log file on the server. Cannot execute the sshpass command after the the first sshpass is excuted. How to ssh to multiple servers and run You can pass a script and have it execute ephemerally by piping it in and executing a shell. @Jetchisel – Parvez First you have to install sshpass. Setup a SSH key pair (google it) and then copy the SSH key to the remote server. I want to ssh to a node and run a command there and then exit. For some strange reason, the ssh-command breaks out of the while-loop, therefore the first missing directory is created fine, but all subsequent missing files/directories are ignored. txt It will only execute cat when you logout of the user tom. I have automated login using expect. All that my shell script contain are 3 command line command which I dont want to run separately so i created a shell script to make them run without my intervention and I put Storing the command in the variable cmd is optional; you can hard-code the command as a string argument to ssh. txt Where the commands. However, everything after the first ssh seems to be executed after I close the ssh conection while I would like ssh servername2 to be executed into the ssh session. ssh/some-site. ForceCommand. How to run expect script from remote server via ssh? Hot Network Questions When I attempt to execute a command on a remote server with ssh, the ssh command hangs after the exec request accepted debug message, and eventually times out. ssh machine ls # or echo ls | ssh machine During set-up the tool issues remote commands such as the following from the primary server: echo '. I am currently writing a bash script to help me update some servers, so I need to connect there, run yum update -y and then sometimes type in additional commands. Implementing background tasks directly feels a bit out of scope for Spur, but you should be able to run the command you've described by invoking a shell e. You can do that by setting up a public/private key via the ssh-keygen command. text | awk '{print "ssh user@remotehost "$0" "}' | sh -x. ssh/rc If you use -t to allocate tty to run interactive command along with background command, and background command is the last command, like this: ssh -t user@host 'bash -c "interactive command; nohup backgroud command &>/dev/null &"' It's possible that background command doesn't actually start. Change echo foobar with the actual command you need to run, and of course you can tack multiple commands if you want. ) In other words, I want to specify the command on my command line. while read server &lt;&amp;3; do #read server names I have a ssh server and i want to execute an specific script each time any user logs in and logs out. I would want the output returned so I can either display it on the screen or log it. But since your process is interactive, this gets tricky. here's the content of this expect script The best way to run commands remotely using SSH is $ ssh user@host "command" > output. One of the results is that the shell won't send it a SIGHUP(If the shell receives I've got a script, named s, on a remote server that activates a virtual environment like this: source venv/bin/activate When SSH-ed into the server, I'm able to activate the environment by. Here is what i have written: Bash/Expect Script for SSH. My loop runs just once when I run the SSH command, however, for SCP it runs for all servers in the text file and exits, I want the loop to run till the end of text file for SSH. ssh using bash script for several nodes. Thanks Execute a specific command on the remote server for each of those lines I could successfully achieve the step #1 and was testing the #3 with a simple scenario, but couldn't make it work yet. 0. echo "ls -l; echo 'Hello World'" | ssh me@myserver /bin/bash Naturally, the "ls -l; echo 'Hello World'" part could be replaced with a bash script stored in a file on the local machine. sh`seems to expand to eval #!/bin/bash echo It's quite simple: ssh [email protected] 'bash -s' < local_bash_script. I second Dennis Williamson's suggestion to look into puppet/etc instead. PuTTY has the -m switch, that you can use to provide a path to a file with a list of commands to execute: putty. I want to send a script on the server through SSH, run it and don't worry about the rest -- I curl my server after a script has finished running (sort of like a webhook). You can also choose to run Very similar with Run a command in an interactive shell with ssh after sourcing . I am able to do till step 2 correctly. Follow below steps. ssh user@host I have a script I can run locally to remotely start a server: #!/bin/bash ssh [email protected] <<EOF nohup /path/to/run. 4 username password $* } # run commands on host machine here ssh_exp ls ssh_exp ls -la ssh_exp echo "Echo from host machine" # you can even run sudo commands (if sudo I am looking to script something in batch which will need to run remote ssh commands on Linux. Commented Apr 4, 2018 at 16:58. sh file and execute it The ssh command does not run from inside a bash script, but it does run from the shell. " ssh -i ~/. You don't need to repeat sudo in the command line because you have defined it already in the playbook. yps kpute easb yzw qivwdzc rves oegytc srx azq vsgitnkcm