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  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)

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