grep problem with the ^ symbol, help needed please. Post: 302180466

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Top Forums UNIX for Dummies Questions & Answers grep problem with the ^ symbol, help needed please. Post 302180466 by vino on Monday 31st of March 2008 09:44:28 AM

03-31-2008

Registered User

Quote:

Originally Posted by Gvsumrb

Hello I am new to this forum and have been perplexed by this issue for the last hour of my life, I've tried to search everywhere for a solution to my syntax error, but here is my code.

grep -wvnf 'noise.dat' sample.out | sort

output:
4:Java Swing
5:Swing Java
6:Software Requirements Analysis
7:Requirements Analysis Software
8:Analysis Software Requirements

my desired ouput should be

1 Analysis Software Requirements
2 Filters Pipes and
3 Java Swing
4 Pipes and Filters
5 Requirements Analysis Software
6 Software Requirements Analysis
7 Swing Java

with the line "and Filters Pipes" omitted.

I have tried doing grep -wvnf '^noise.dat' sample.out | sort

with the ^ symbol in there but i get the "grep: ^noise.dat: No such file or directory" with so many different variations, but I just cannot figure it out.

Any help would be greatly appreciated, I have spent so much time on this, and yes I do know I am noob, but my professor for this class is horrible.

It is against the rules of the forum to post homework questions. I shall try only to guide you in the right direction. No direct solutions.

What are the contents of sample.out and noise.dat ? Also "^" is used when you are using a string and not when using an input file.

vino

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LEARN ABOUT OPENDARWIN

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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