ps -ef Post: 302076887

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Top Forums UNIX for Advanced & Expert Users ps -ef Post 302076887 by Unbeliever on Friday 16th of June 2006 11:57:34 AM

06-16-2006

Registered User

I'm sure pgrep will suit your needs ... here is an example script. You cant have it running more than once one a single machine.

Put the following codes intoa script called 'sleep.sh'

Code:

#!/bin/sh
# sleep.sh: test running a single instance of a script
pgrep sleep.sh | grep -v $$ > /dev/null

# if we were already running exit
if [ $? -eq 0 ]
then
  echo sleep.sh is already running exiting ...
  exit
fi

sleep 1000

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xzgrep

XZGREP(1)							     XZ Utils								 XZGREP(1)

NAME

       xzgrep - search compressed files for a regular expression

SYNOPSIS

       xzgrep [grep_options] [-e] pattern file...
       xzegrep ...
       xzfgrep ...
       lzgrep ...
       lzegrep ...
       lzfgrep ...

DESCRIPTION

       xzgrep  invokes	grep(1)  on  files which may be either uncompressed or compressed with xz(1), lzma(1), gzip(1), bzip2(1), or lzop(1).  All
       options specified are passed directly to grep(1).

       If no file is specified, then standard input is decompressed if necessary and fed to grep(1).  When reading from standard  input,  gzip(1),
       bzip2(1), and lzop(1) compressed files are not supported.

       If  xzgrep  is  invoked as xzegrep or xzfgrep then egrep(1) or fgrep(1) is used instead of grep(1).  The same applies to names lzgrep, lze-
       grep, and lzfgrep, which are provided for backward compatibility with LZMA Utils.

ENVIRONMENT

       GREP   If the GREP environment variable is set, xzgrep uses it instead of grep(1), egrep(1), or fgrep(1).

SEE ALSO

       grep(1), xz(1), gzip(1), bzip2(1), lzop(1), zgrep(1)

Tukaani 							    2011-03-19								 XZGREP(1)