Running full commands through remote ssh [duplicate]

Question

Possible Duplicate:
how to use ssh to run shell script on a remote machine?

I am trying to make a bash script that runs on my remote server's daily cron jobs to automatically login through ssh to another unix box, run a few commands and then leave.

#!/bin/bash
ssh machinehost.com -l admin -p 2222 "/usr/bin/find /share/Public/backups/set0 -mtime +14 | xargs rm -f;
                               /usr/bin/find /share/Public/backups/set1 -mtime +4 | xargs rm -f;
                               /usr/bin/find /share/Public/backups/set2 -mtime +3 | xargs rm -f;
                               /usr/bin/find /share/Public/backups/set3 -mtime +21 | xargs rm -f;
                               /usr/bin/find /share/Public/backups/set4 -mtime +2 | xargs rm -f;
                               /usr/bin/find /share/Public/backups/set5 -mtime +2 | xargs rm -f;
                               "

The problem I am having is I need to modify my current existing code to do something a little more complicated before each command like

if [ $(ls /share/Public/backups/set1 -1 | wc -l ) -gt 4 ] then run above command
fi

How would I go about running this command on the remote ssh machine and not on my local cron one?

@Wooble The other question was asking for a way to run a shell script on a remote computer, where as that is a solution to the problem for this poster. I think the question is different enough. — mopsled
– mopsled, Commented Aug 13, 2011 at 2:52

Community · Accepted Answer · 2017-05-23 12:34:54Z

47

Try writing your bash script locally and calling:

ssh [email protected] 'bash -s' < local_script.sh

(Found in the discussion here)

edited May 23, 2017 at 12:34

CommunityBot

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answered Aug 13, 2011 at 2:31

mopsled

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Tomas · Accepted Answer · 2011-08-13 02:33:05Z

3

Write a script, copy it to the remote machine and from ssh run just that script.

answered Aug 13, 2011 at 2:33

Tomas

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1 Comment

djhaskin987 Over a year ago

This is the approach I use on my servers.

Kit Ho · Accepted Answer · 2011-08-13 04:46:49Z

1

Another workaround is to use python. There is a module called pexpect that can solve your problem, and even more complicated scenario.

answered Aug 13, 2011 at 4:46

Kit Ho

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