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Full Discussion: How to check whether server is up or down by monitoring PID?
Top Forums Shell Programming and Scripting How to check whether server is up or down by monitoring PID? Post 302426594 by Peace_Dude1 on Wednesday 2nd of June 2010 09:15:04 AM
Old 06-02-2010
In my experience just because the PID exists, it doesn't mean that the server is up and running.

If it is a web server that you are monitoring, try using wget periodically. You can then grep the output to check for expected html content.

For other types of servers, something similar can be done.

Peace
 

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LEARN ABOUT OSF1

biff

biff(1) 						      General Commands Manual							   biff(1)

NAME

       biff - Notifies users when mail arrives

SYNOPSIS

       biff [y | n]

DESCRIPTION

       The  biff  command  informs the system whether you want to be notified when mail arrives during the current terminal session. The following
       command enables notification: biff y

       The following command disables notification: biff n

       When mail notification is enabled, the From: and Subject: header lines and up to the first five lines of the  message  are  displayed.  The
       total display is 560 characters, or seven lines terminated by newline characters, whichever occurs first.

       The biff y command is often included in the $HOME/.login or $HOME/.profile file to be executed each time you log in.

       The biff command operates asynchronously. For synchronous notification, use the MAIL variable of sh or ksh, or the mail variable of csh.

EXAMPLES

       To  display  the current setting, enter: biff To be notified during the current terminal session whenever mail arrives, enter the following
       in your $HOME/.login or $HOME/.profile file: biff y

FILES

       Read by login shell (after login.  User profile.

SEE ALSO

       Commands:  comsat(8), csh(1), ksh(1), mail(1), mailx(1), Bourne Shell sh(1b), POSIX Shell sh(1p)

																	   biff(1)
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