PS -EF | GREP JAVA Modification Post: 302937412

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Top Forums Shell Programming and Scripting PS -EF | GREP JAVA Modification Post 302937412 by rbatte1 on Thursday 5th of March 2015 11:25:01 AM

03-05-2015

Moderator

I'm confused a little. perhaps some good practice will help you whilst I try to work out what you need.

If you change your command to be ps -ef | grep jav[a] then you will only get the header and any real java processes, i.e. your grep will be excluded. If you want just a few columns from that very wide output, consider the -o formatting flag for the command instead, perhaps something like this will meet your needs if you are sure that these is just one real java process:-

Code:

ps -e -o pid= -o comm= | grep jav[a] | read PID COMM

I hope that this helps,
Robin

rbatte1

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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  is used to invoke the grep on compress'ed or gzip'ed files. All options specified are passed directly to grep.  If no file is speci-
       fied, 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  zgrep  is invoked as zegrep or zfgrep then egrep or fgrep is used instead of grep.  If the GREP environment variable is set, zgrep uses
       it as the grep program to be invoked. For example:

	   for sh:  GREP=fgrep	zgrep string files
	   for csh: (setenv GREP fgrep; zgrep string files)

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

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

																	  ZGREP(1)

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zgrep