perl ssh with timeout?

[Markus Dehmann]

How can I use perl to connect to a remote computer via ssh with a timeout?

I saw the modules Net::SSH and Net::SSH:erl, but didn't see timeout
options. The latter one I wasn't able to install anyway (the required
Crypt:H never finishes its tests in CPAN shell).

Maybe just use the system command? But it also does not have a timeout?

BTW, all computers I want to connect to don't require my password, so
getting a connection should be straightforward.

Thanks!
Markus

 

[Rick Scott]

How can I use perl to connect to a remote computer via ssh with a
timeout?

Use alarm to send yourself a SIGALRM in $timeout seconds, then install
a function that handles SIGALRM.

This is a frequently asked question. You can use
perldoc -q keyword
to search the Perl FAQ for the given keyword; in this case,
perldoc -q timeout
would have given you the answer you are looking for. See also:

perldoc -f alarm
perldoc perlipc




Cheers,
Rick