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Full Discussion: Using grep output as input for sed command
Top Forums UNIX for Dummies Questions & Answers Using grep output as input for sed command Post 302410991 by cavanac2 on Wednesday 7th of April 2010 10:14:59 AM
Old 04-07-2010
Data Using grep output as input for sed command
Hi,

I would like to know if this is possible, and if so what can i do to make this work.

I would like to grep a line X from fileA and then use the output to replace a word Y in fileB.

Code:
grep "line X" fileA | sed -e 's/Y/X/g' > outfile

this statement does not work, as i do not know how to get the sed command to recognize the grep output.

Any suggestions?

edit by bakunin: please use code-tags for posting code, commands or file contents
Last edited by bakunin; 04-07-2010 at 01:07 PM..
 

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LEARN ABOUT SUSE

lzegrep

XZGREP(1)							     XZ Utils								 XZGREP(1)

NAME

       xzgrep - search compressed files for a regular expression

SYNOPSIS

       xzgrep [grep_options] [-e] pattern file...
       xzegrep ...
       xzfgrep ...
       lzgrep ...
       lzegrep ...
       lzfgrep ...

DESCRIPTION

       xzgrep  invokes	grep(1)  on  files  which may be either uncompressed or compressed with xz(1), lzma(1), gzip(1), or bzip2(1).  All options
       specified are passed directly to grep(1).

       If no file is specified, then the standard input is decompressed if necessary and fed  to  grep(1).   When  reading  from  standard  input,
       gzip(1) and bzip2(1) compressed files are not supported.

       If  xzgrep  is  invoked as xzegrep or xzfgrep then egrep(1) or fgrep(1) is used instead of grep(1).  The same applies to names lzgrep, lze-
       grep, and lzfgrep, which are provided for backward compatibility with LZMA Utils.

ENVIRONMENT

       GREP   If the GREP environment variable is set, xzgrep uses it instead of grep(1), egrep(1), or fgrep(1).

SEE ALSO

       grep(1), xz(1), gzip(1), bzip2(1), zgrep(1)

Tukaani 							    2009-07-05								 XZGREP(1)
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