[Solved] Looking for script running before I run script again Post: 302630303

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Top Forums Shell Programming and Scripting [Solved] Looking for script running before I run script again Post 302630303 by brianjb on Wednesday 25th of April 2012 04:41:52 PM

04-25-2012

Registered User

[Solved] Looking for script running before I run script again

Good afternoon!

I have a script in cron that runs every ten minutes. Normally it only takes a minute or so to complete. However there are times when the amount of data it is looking at is large, and it has taken 20 minutes.

So I want for it to look for the script before it starts.

I was going to put something like this in the beginning"

Code:

ps -ef | grep "stats.sh" | grep -v "grep"

And if it found a process, then it will just exit. Otherwise, it will continue on like normal. My thought process is that this runs every ten minutes and if there is something going on that is causing it take longer than 10 minutes (or really 7 or 8) then they won't all stack up running at the same time.

It is on the tip of my brain, but I can't seem to find it.

I was thinking of doing this,

Code:

ps -ef | grep "stats.sh" | grep -v "grep" > /var/tmp/stats.tmp
namedtmp=/var/tmp/stats.tmp
if [ -s $namedtmp ]
then
exit
else
then continue on with script
fi

What do you think? Any suggestions?

This is causing a problem, because at one time it took up all of the CPU and memory and nobody could log in via SSH even.

brianjb

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LEARN ABOUT X11R4

zgrep

ZGREP(1)                                                      General Commands Manual                                                     ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep  options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

                                                                                                                                          ZGREP(1)