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Full Discussion: how to detect port open status?
Top Forums Shell Programming and Scripting how to detect port open status? Post 302419324 by amitranjansahu on Thursday 6th of May 2010 11:38:35 PM
Old 05-07-2010
Why don't u check with netstat

Code:
netstat -an | grep $port
if [ $? -eq 0 ]
then
    echo "$port is free"
else
    echo "$port is listening"
fi

 

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LEARN ABOUT SUSE

gdm-restart

gdm-restart(1m)                                                    User Commands                                                   gdm-restart(1m)

NAME

       gdm-restart, gdm-safe-restart, gdm-stop - stop or restart GDM

SYNOPSIS

       gdm-restart

       gdm-safe-restart

       gdm-stop

DESCRIPTION

       gdm-restart stops and restarts GDM by sending a HUP signal to the GDM daemon. This command immediately terminates all sessions and logs out
       users currently logged in with GDM.

       gdm-safe-restart stops and restarts GDM by sending a USR1 signal to the GDM daemon. GDM is restarted as soon as all users log out.

       gdm-stop stops GDM by sending a TERM signal to the GDM daemon.

FILES

       The following files are used by this application:

       /usr/bin/gdm-restart    Executable to stop and restart GDM

       /usr/bin/gdm-safe-restarExecutable to stop and restart GDM safely

       /usr/bin/stop           Executable to stop GDM

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWgnome-display-mgr        |
       +-----------------------------+-----------------------------+
       |Interface stability          |External                     |
       +-----------------------------+-----------------------------+

SEE ALSO

       Latest version of the GNOME Desktop User Guide for your platform.

       gdm(1), gdmXnestchooser(1), gdmflexiserver(1), gdmphotosetup(1), gdmsetup(1), gdmthemetester(1), gdmconfig(1m)

NOTES

       Written by Brian Cameron, Sun Microsystems Inc., 2004.

SunOS 5.10                                                          1 Sep 2004                                                     gdm-restart(1m)
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