How to store the value of grep in a variable Post: 302639195

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How to store result of grep into a variable?

In a directory i have a file *output* whose contents are changing for every simulation. zgrep "trace file is" *output* | zgrep g o/p: trace file is Int_01.1352176388z4f56ec33.0.trace.gz I want to extract "Int_01.1352176388z4f56ec33.0.trace.gz" from the above result into a variable. i...

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!#bin/bash clear var= grep @gmail.com email.txt | wc -l echo $var echo $var exit 0 OUTPUT: 1000 _ _ Where _ represent space (no value or nothing)

LEARN ABOUT LINUX

xzegrep

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 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 							    2010-09-27								 XZGREP(1)

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