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Full Discussion: how to detect my script is already running
Top Forums UNIX for Dummies Questions & Answers how to detect my script is already running Post 96367 by mahendramahendr on Thursday 19th of January 2006 12:26:07 PM
Old 01-19-2006
To add to the above stuff, if you checking with ps -ef for running process, you should also consider the other stuff like... if some opened the script with vi, or doing more with the executable or doing more with the log file name that contains executable name . log etc.... it will also come on ps -ef and your condition becomes true though your script is not running actually.

ps -fu $LOGNAME | grep '[m]yscript' | egrep -v "more | cat | vi | pg | ls | ......."

so better having lock file if possible, otherwise, use the above and do egrep -v with all possible combinations.
 

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LEARN ABOUT NETBSD

zfgrep

ZGREP(1)						    BSD General Commands Manual 						  ZGREP(1)

NAME

     zgrep, zegrep, zfgrep -- print lines matching a pattern in gzip-compressed files

SYNOPSIS

     zgrep [grep-flags] [--] pattern [files ...]

     zegrep [grep-flags] [--] pattern [file ...]

     zfgrep [grep-flags] [--] pattern [file ...]

DESCRIPTION

     zgrep runs grep(1) on files or stdin, if no files argument is given, after decompressing them with zcat(1).

     The grep-flags and pattern arguments are passed on to grep(1).  If an -e flag is found in the grep-flags, zgrep will not look for a pattern
     argument.

     zegrep calls egrep(1), while zfgrep calls fgrep(1).

EXIT STATUS

     In case of missing arguments or missing pattern, 1 will be returned, otherwise 0.

SEE ALSO

     egrep(1), fgrep(1), grep(1), gzip(1), zcat(1)

AUTHORS

     Thomas Klausner <wiz@NetBSD.org>

BSD
								 December 28, 2003							       BSD
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