ksh script to check if certain process is running Post: 302929965

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Top Forums Shell Programming and Scripting ksh script to check if certain process is running Post 302929965 by Don Cragun on Monday 29th of December 2014 07:06:31 AM

12-29-2014

Registered User

By changing:

Code:

TESTSTATUS=`ps -ef | grep test | grep -v grep | sed -e 's/^[ \t]*//'`

echo
echo
echo "\033[1;37 \033[1mAs soon as Test processes comes back up it will appear below:\033[0m\n"

until [[ -n $TESTSTATUS ]];do ps -ef | grep test | grep -v grep | sed -e 's/^[ \t]*//';done

to:

Code:

TESTSTATUS=`ps -ef | grep test | grep -v grep | sed -e 's/^[ \t]*//'`

echo
echo
echo "\033[1;37 \033[1mAs soon as Test processes comes back up it will appear below:\033[0m\n"

until [[ -n $TESTSTATUS ]];do TESTSTATUS=`ps -ef | grep test | grep -v grep | sed -e 's/^[ \t]*//'`;done

Note that this will eat up a LOT of CPU cycles until your condition is met. Other people trying to get work done on your system (including those trying to start the process you're looking for) might be a lot happier if you at least stick a one second delay in your loop:

Code:

TESTSTATUS=`ps -ef | grep test | grep -v grep | sed -e 's/^[ \t]*//'`

echo
echo
echo "\033[1;37 \033[1mAs soon as Test processes comes back up it will appear below:\033[0m\n"

until [[ -n $TESTSTATUS ]];do sleep 1;TESTSTATUS=`ps -ef | grep test | grep -v grep | sed -e 's/^[ \t]*//'`;done

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LEARN ABOUT NETBSD

zegrep

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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LEARN ABOUT NETBSD

zegrep