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Top Forums Shell Programming and Scripting How to check if a word begins with "-" Post 302335042 by Yogesh Sawant on Friday 17th of July 2009 06:09:36 AM
Old 07-17-2009
Quote:
Originally Posted by lathavim
Code:
 
grep ^- filename

that displays all lines that begin with -
^ matches start of line, so ^- matches lines that start with -

this won't include lines where, say, the third word starts with -
as in:
Code:
this is -the line

how about:
Code:
grep -E '(^|[[:blank:]])\-' filename


Last edited by Yogesh Sawant; 07-17-2009 at 07:19 AM..
 

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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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