I am trying to run a script in remote machine using ssh.
sshpass -p "" ssh abc#remote.com "bash -s" < path/file.sh
When I execute this command normally, It is executing.
But when i put this into another shell script and executing it then it showing
no such file or directory
I tried putting #!/bin/bash in the top of code also.
But no use. Please can anyone help me?
Actually second time it runs on your local machine not on remote machine try following
ssh abc#remote.com "cd /home && ls -l"
Related
I wish to run a script on the remote system and then wish to stay there.
Running following script:-
ssh user#remote logs.sh
This do run the script but after that I am back to my host system. i need to stay on remote one. I tried with..
ssh user#remote logs.sh;bash -l
somehow it solves the problem but still not working exactly as a fresh login as the command:-
ssh user#remote
Or it will be better if i could include something in my script that would open the bash terminal in the same directory where the script was running. Please suggest.
Try this:
ssh -t user#remote 'logs.sh; bash -l'
The quotes are needed to pass both commands to ssh. The -t option forces a pseudo-tty allocation.
Discussion
Consider:
ssh user#remote logs.sh;bash -l
When the shell parses this line, it splits it into two commands. The first is:
ssh user#remote logs.sh
This runs logs.sh on the remote machine. The second command is:
bash -l
This opens a login shell on the local machine.
The quotes were added above to prevent the shell from splitting up the commands this way.
I want to remotely run a node.js script containing a shebang line through ssh, similarly as when running it locally.
myscript file:
#!/usr/bin/env node
var param = process.argv[2] || 'help';
//... other js code
When running locally on each host – e.g. myscript arg1 – it runs successfully. When running remotely on a "sister" node in a cluster (containing the same file and directory structure, including nodeand myscript):
ssh -o "PasswordAuthentication no" bob#123.1.2.3 /path/to/myscript arg1
I get /usr/bin/env: ‘node’: No such file or directory error.
Am I missing a ssh param / option?
Mode details: If I run
ssh -o "PasswordAuthentication no" bob#123.1.2.3 echo "hello"
It also works fine. Forgive me it this is obvious to you, I'm not an advanced Linux user, the ssh manual seemed a little bit overwhelming and tried a couple answers found here with no success:
What exactly does "/usr/bin/env node" do at the beginning of node files?
Run scripts remotely via SSH
how to run a script file remotely using ssh
If the node executable isn't already in your PATH environment variable at login, you could provide the full path to it in the shebang line of your script:
#!/usr/bin/env /full/path/to/node
As others have commented, you would have to update your script if the path to node ever changes. This is not ideal. Alternatively, you could force ssh to create a pseudo-terminal session by specifying the -t flag and run your script in an interactive bash shell:
ssh -t -o "PasswordAuthentication no" bob#123.1.2.3 'bash -ic "/path/to/myscript arg1"'
Sebastian's answer inspired me to find a solution that doesn't hardcode the full path to node on the script. Basically, I make sure the remote PATH is available before running the command:
ssh -o "PasswordAuthentication no" bob#123.1.2.3 "export PATH=$PATH;/path/to/myscript arg1"
But this only worked for me because both local and remote servers have the same PATH value, since the local PATH is being set onto the remote session.
Here there may be some ways to explore other solutions if your case is not like mine:
How do I set $PATH such that `ssh user#host command` works?
How to set PATH when running a ssh command?
I have a webservice that runs on multiple different remote redhat machines. Whenever I want to update the service I will sync down the new webservice source code written in perl from a version control depot(I use perforce) and restart the service using that new synced down perl code. I think it is too boring to log to remote machines one by one and do that series of commands to restart the service one by one manully. So I wrote a bash script update.sh like below in order to "do it one time one place, update all machines". I will run this shell script in my local machine. But it seems that it won't work. It only execute the first command "sudo -u webservice_username -i" as I can tell from the command line in my local machine. (The code below only shows how it will update one of the remote webservice. The "export P4USER=myname" is for usage of perforce client)
#!/bin/sh
ssh myname#remotehost1 'sudo -u webservice_username -i ; export P4USER=myname; cd dir ; p4 sync ; cd bin ; ./prog --domain=config_file restart ; tail -f ../logs/service.log'
Why I know the only first command is executed? Well because after I input the password for the ssh on my local machine, it shows:
Your environment has been modified. Please check /tmp/webservice.env.
And it just gets stuck there. I mean no return.
As suggested by a commentor, I added "-t" for ssh
#!/bin/sh
ssh -t myname#remotehost1 'sudo -u webservice_username -i ; export P4USER=myname; cd dir ; p4 sync ; cd bin ; ./prog --domain=config_file restart ; tail -f ../logs/service.log'
This would let the local commandline return. But it seems weird, it cannot cd to that "dir", it says "cd:dir: No such file or directory" it also says "p4: command not found". So it looks like the sudo -u command executes with no effect and the export command has either not executed or excuted with no effect.
A detailed local log file is like below:
Your environment has been modified. Please check /tmp/dir/.env.
bash: line 0: cd: dir: No such file or directory
bash: p4: command not found
bash: line 0: cd: bin: No such file or directory
bash: ./prog: No such file or directory
tail: cannot open `../logs/service.log' for reading: No such file or directory
tail: no files remaining
Instead of connecting via ssh and then immediately changing users, can you not use something like ssh -t webservice_username#remotehost1 to connect with the desired username to begin with? That would avoid needing to sudo altogether.
If that isn't a possibility, try wrapping up all of the commands that you want to run in a shell script and store it on the remote machine. If you can get your task working from a script, then your ssh call becomes much simpler and should encounter fewer problems:
ssh myname#remotehost1 '/path/to/script'
For easily updating this script, you can write a short script for your local machine that uploads the most recent version via scp and then uses ssh to invoke it.
Note that when you run:
#!/bin/sh
ssh myname#remotehost1 'sudo -u webservice_username -i ; export P4USER=myname; cd dir ; p4 sync ; cd bin ; ./prog --domain=config_file restart ; tail -f ../logs/service.log'
Your ssh session runs sudo -u webservice_username -i waits for it to exit and then runs the rest of the commands; it does not execute sudo and then run the commands following. This has to do with the context in which you're running the series of commands. All the commands get executed in the shell of myname#remotehost1 and all sudo -u webservice_username - i is starts a shell for webservice_username and doesn't actually run any commands.
Really the best solution here is like bta said; write a script and then rsync/scp it to the destination and then run that using sudo.
export command simply not working with ssh like this, what you want to do is remote modify ~/.bashrc and it will source itself each time u do ssh login.
We recently got SSH setup on our Windows boxes so we could eliminate the need for disc mounts on our Linux machines. We are using Pentaho and I am writing a shell script that will, from a Linux box, SSH into the Windows box and execute a perl script.
I have able to write in a way to SSH into the windows box and switch to the directory that holds the Perl scripts that I need to execute, I just can't figure out how to actually execute them.
This is what I have:
#!/bin/sh
ssh -t xxxxx#xxxxx "cd /path/to/script/ /path/to/perl.exe HelloWorld.pl"
I have also tried:
#!/bin/sh
ssh -t xxxxx#xxxxx "cd /path/to/directory/with/perl/script" \
"/path/to/perl.exe HelloWorld.pl"
Both attempts result in a short delay and then a "disconnected from xxxxx" and the perl does not run. I can do all of these steps manually through a shell, but can't seem to get them working in script form. As a note, the only way I've been able to execute the perl scripts is if have the shell in the directory the perl script is in.
You need to use either a semi colon to end your statements, or execute with one statement.
try the following:
ssh xxxxx#xxxxx "cd /path/to/script/; /path/to/perl.exe HelloWorld.pl"
or:
ssh xxxxx#xxxxx "/path/to/perl.exe /path/to/script/HelloWorld.pl"
In the Windows command shell, you can use && like in a Unix-shell. If you expect the first command to succeed,
ssh -t xxxxx#xxxxx "cd /path/to/script/ && /path/to/perl.exe HelloWorld.pl"
will work.
I am new to the linux/unix world. I would like to trigger a make on a remote machine. For this purpose i created a little script on the remote machine which i want to execute via ssh.
The script looks something like this:
echo "loading .profile"
. ~/.profile
echo "profile loaded"
echo "starting gmake"
cd ~/helloWorld/
gmake all
I invoke the script with following ssh command:
ssh user#remotehost "cd ~/helloWorld && ./myscript.sh"
When I execute this command my machine connects to the remote machine. It tells me that the profile is loaded and then i have to press [CTRL]+[D] to continue with the script. So it seems that the . ./myscript.sh command creates something like a new terminal. I dont want this behaviour. I would like to use the ssh command to automate the building process without the need of closing the terminal manually. Is there a way to do this?
Thanking you in anticipation,
John
./source does not invoke a new shell. It runs the commands in the script in the current shell. Something else is going wrong.