Your telnet cmd is interacting with ksh, not perl, at the other end. So you need to tell it to run something. You could, for example, tell it to run: 

@contents = $telnet->cmd(qq(perl -e '$,=$/; print stat(shift)' $logfil
+e));

[download]
But if you only need mtime, you could tell the remote perl to just return that. 
@contents = $telnet->cmd(qq(perl -MFile::stat -e 'print stat(shift)->m
+time()' $logfile));

[download]
Hope that helps.

In reply to Re: How to execute stat command in remote server by Tanktalus
in thread How to execute stat command in remote server by qsl

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