Using ssh to execute a remote script in the background


 
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Old 03-10-2011
Using ssh to execute a remote script in the background

Help please!!

I want to use ssh to execute a remote exe and while it's running I want to query for the process ID of the exe (2 different ssh commands)

1. sshpass -p "<passwd>" ssh -f -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no root@<ipaddress> nohup /tmp/mmds_asyn &

2. sshpass -p "<passwd>" ssh -f -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no root@<ipaddress> pidstat -t|grep mmds_asyn &

3. Other ssh commands to send kill -s events to the process ID acquired


However step 1) does not work for me. I execute step 1) and the process mmds_asyn is not running on the remote machine??

Can you help me fix this please??

---------- Post updated at 06:35 PM ---------- Previous update was at 06:16 PM ----------

Apparently pidstat is not the right tool for querying - used ps -e and it worked!!!
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SSH-COPY-ID(1)						      General Commands Manual						    SSH-COPY-ID(1)

NAME
ssh-copy-id - install your public key in a remote machine's authorized_keys SYNOPSIS
ssh-copy-id [-i [identity_file]] [user@]machine DESCRIPTION
ssh-copy-id is a script that uses ssh to log into a remote machine and append the indicated identity file to that machine's ~/.ssh/autho- rized_keys file. If the -i option is given then the identity file (defaults to ~/.ssh/id_rsa.pub) is used, regardless of whether there are any keys in your ssh-agent. Otherwise, if this: ssh-add -L provides any output, it uses that in preference to the identity file. If the -i option is used, or the ssh-add produced no output, then it uses the contents of the identity file. Once it has one or more fin- gerprints (by whatever means) it uses ssh to append them to ~/.ssh/authorized_keys on the remote machine (creating the file, and directory, if necessary.) NOTES
This program does not modify the permissions of any pre-existing files or directories. Therefore, if the remote sshd has StrictModes set in its configuration, then the user's home, ~/.ssh folder, and ~/.ssh/authorized_keys file may need to have group writability disabled manu- ally, e.g. via chmod go-w ~ ~/.ssh ~/.ssh/authorized_keys on the remote machine. SEE ALSO
ssh(1), ssh-agent(1), sshd(8) OpenSSH 14 November 1999 SSH-COPY-ID(1)