This type of stuff seems to just keep coming back. People want to run scripts remotely. I've tried every way I can think of and this is the best way. You not only get functionality but you get security as well. Every Unix environment needs a way to issue shell scripts, perl script, SQL scripts to remote servers. I have posted the following example already but I will do it again. Everytime I go to a new company the first thing I do is build an issuance process. A way to issue script remotely outside of using some scheduler like Maestro or Control -m.





This is really a multi step process. You need to setup SSH correctly and create a key pair and passphrase. Then you need to load your keys into the SSH agent so that you don't get prompted for a passphrase. The SSH agent will handle passing your passphrase to the other systems.

Example:

#ssh-add
Adding identity: /home/tester/.ssh2/id_dsa_1024_defender.pub
Need passphrase for /home/tester/.ssh2/id_dsa_1024_defender.pub
(1024-bit dsa, tester@defender, Sun Apr 30 2000 21:39:13).
Enter passphrase:

#ssh server date
Wed May 10 14:06:57 EDT 2006
#

#Now that you have SSH setup. You can take any script and scp the script to the remote server.



Sample script below
###############################################
#!/bin/sh

LOG="/tmp/MYTEST.log
##################
function if_error
##################
{
if [[ $? -ne 0 ]]; then # check return code passed to function
print "$1 TIME:$TIME" | tee -a $LOG # if rc > 0 then print error msg and quit
exit $?
fi
}

chown root:root /etc/passwd
if_error "Failed chowning /etc/passwd to root:root"

chmod 700 /etc/passwd
if_error "Failed chmoding /etc/passwd to 700"

rm -rf /etc/somedir
if_error "Failed deleting /etc/somedir"
################################################

#Okay..So SSH is working and you got a little test script with the proper error checking in it. Also, I used the tee command to redirect the output of the script to the screen and to a log file in tmp.

scp $USER@$HOST:$PATH/$SCRIPT $USER@$HOST:/tmp/$SCRIPT
ssh -l $USER $HOST chmod 700 /tmp/$SCRIPT
ssh -l $USER $HOST /tmp/$SCRIPT
ssh -l $USER HOST rm /tmp/$SCRIPT

1. Copied script to server
2. Changed permissions
3. Executed script that will write to log file and screen cause I wrote it like that.
4. rm the script


Hope this is helpful.

-X