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Top Forums UNIX for Dummies Questions & Answers Strange error: grep does not read from file Post 302557081 by Abhishek_1984 on Tuesday 20th of September 2011 11:17:51 AM
Old 09-20-2011
My mitake instead of grep use egrep

egrep -f test1 test2
angie blond
mary brunnet
susan red


I am getting the requird result.

---------- Post updated at 10:17 AM ---------- Previous update was at 10:15 AM ----------

Hi, instead of grep you have to use egrep

egrep -f test1 test2
angie blond
mary brunnet
susan red

I am getting the required result
 

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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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