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Top Forums UNIX for Dummies Questions & Answers Syntax Help | unix | grep | regular expression | repetition Post 302360962 by Scrutinizer on Sunday 11th of October 2009 06:21:49 PM
Old 10-11-2009
And then you could leave out the comma too:
Code:
ps -e | grep "^ *[0-9]\{4\}"

or even 4 characters that are no space.
Code:
ps -e | grep "^ *[^ ]\{4\}"

( and since the first field is right aligned and the max pid is 99999:
Code:
ps -e|grep '^.[^ ]'

or filter out lines that start with two spaces:
Code:
ps -e|grep -v '^  '

but that is stretching it a little and probably not very portable Smilie )

Last edited by Scrutinizer; 10-11-2009 at 07:59 PM..
 

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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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