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Using IPC::Run to control ssh client

by eisvogel (Initiate)
on Oct 25, 2000 at 01:24 UTC ( #38228=categorized question: print w/replies, xml ) Need Help??
Contributed by eisvogel on Oct 25, 2000 at 01:24 UTC
Q&A  > programs and processes


Description:

Hi there. I have a fairly simply task; I just want to use the IPC::Run module (with <pty redirect operator) and the batch-mode run routine to execute the ssh1 client, so that I can write by handle to its stdin and read (by handle) from its stdout and stderr. Does anyone know of any good code somewhere to do this, or any code that uses IPC::Run with ptys to execute anything?

Many thanks!

Answer: Using IPC::Run to control ssh client
contributed by lachoy

The Net::SSH module looks as if it might be useful.

Answer: Using IPC::Run to control ssh client
contributed by Lightknight

For some reason, if we start ssh directly, ssh doesn't accept these ptys (and tries to launch ssh askpass). But if we start bash first, and from there launch ssh, it works.

my $h = start ['bash'], '<pty<', \$in, '>pty>', \$outAndErr, timeo +ut(15); pump $h until $outAndErr =~ /$prompt/; $outAndErr=''; $in .= "ssh user\@host\n"; pump $h until $outAndErr =~ /password:/; $outAndErr=''; $in .= "password\n"; pump $h until $outAndErr =~ /$remotePrompt/; $outAndErr=''; # You're in - do your stuff
Disclaimer: The original version of the above snippet works, but I've simplified it for this posting, and it is possible there are (minor) bugs in the above.

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    [1nickt]: Corion this looks good, from the pod: "there are 9000+ variations that are detected correctly in the test files (see t/data/* for most of them). If you can think of any that I do not cover, please let me know."
    [TCLion]: some moron put the date like this : Mon Feb 20 09:31:30 2017
    [Corion]: 1nickt: Yes, the module sounds promising indeed
    [1nickt]: "putting the date in correct order" how?
    [Corion]: TCLion: Whee ;)
    [TCLion]: need to put like this : 2017-02-20 09:30:53
    [1nickt]: That's why I asked if you are using DateTime. It has a large number of supporting modules (the author likes the term 'eco-system') so if you are already creating a DateTime obj from your dates, this module would read in the mnoron-formatted 1s seamlessly
    [TCLion]: when I put the date together it looks like : 2017-Feb-24 (month is the problem)
    [1nickt]: good luck, then.
    [TCLion]: looking at DateTime documentation in monastery now

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