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Full Discussion: ssh in perl
Top Forums Shell Programming and Scripting ssh in perl Post 302706037 by balajesuri on Wednesday 26th of September 2012 03:22:17 AM
Old 09-26-2012
Quote:
Originally Posted by irudayaraj
my @arrayline=`ssh -n $user\@$server $cmd`;
I consider this a bad way of coding in perl. Unless absolutely necessary, I don't consider it a good practice to invoke system commands in backticks. Check for more perl-ish alternatives. For e.g., there's an SSH module available in CPAN which will enable you to connect to another machine. Also, using system commands in perl defeats portability to different platforms. I've seen people in my previous work-place who have written quick-and-dirty perl scripts with lots of system calls. Instead it would be better to write the whole program in underlying OS' shell.
 

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GNOME-SSH-ASKPASS(1)					      General Commands Manual					      GNOME-SSH-ASKPASS(1)

NAME
gnome-ssh-askpass - prompts a user for a passphrase using GNOME SYNOPSIS
gnome-ssh-askpass DESCRIPTION
gnome-ssh-askpass is a GNOME-based passphrase dialog for use with OpenSSH. It is intended to be called by the ssh-add(1) program and not invoked directly. It allows ssh-add(1) to obtain a passphrase from a user, even if not connected to a terminal (assuming that an X display is available). This happens automatically in the case where ssh-add is invoked from one's ~/.xsession or as one of the GNOME startup pro- grams, for example. In order to be called automatically by ssh-add, gnome-ssh-askpass should be installed as /usr/bin/ssh-askpass. ENVIRONMENT VARIABLES
The following environment variables are recognized: GNOME_SSH_ASKPASS_GRAB_SERVER Causes gnome-ssh-askpass to grab the X server before asking for a passphrase. GNOME_SSH_ASKPASS_GRAB_POINTER Causes gnome-ssh-askpass to grab the mouse pointer using gdk_pointer_grab() before asking for a passphrase. Regardless of whether either of these environment variables is set, gnome-ssh-askpass will grab the keyboard using gdk_keyboard_grab(). AUTHOR
This manual page was written by Colin Watson <cjwatson@debian.org> for the Debian system (but may be used by others). It was based on that for x11-ssh-askpass by Philip Hands. GNOME-SSH-ASKPASS(1)
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