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Top Forums UNIX for Dummies Questions & Answers Using grep output as input for sed command Post 302411017 by cavanac2 on Wednesday 7th of April 2010 11:09:44 AM
Old 04-07-2010
Using grep output as input for sed command

Hi,

Thanks much, unfortunatly, its not quite what i need. I need to be able to go into my FileB and using the grep output from FileA do a replace command on one of my words in file A with the grep output.

I forgot to add in the fileB in my last line of code, but heres what i was going for
Code:
grep "line X" fileA | sed -e fileB 's/Y/X/g' > outfile

again not sure if there is a way to be able to use the grep output in the sed command.

Best,
Claire

Last edited by bakunin; 04-07-2010 at 01:07 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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