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Full Discussion: need help on how to read command in unix
Top Forums UNIX for Dummies Questions & Answers need help on how to read command in unix Post 302196705 by era on Monday 19th of May 2008 08:20:08 AM
Old 05-19-2008
If that's all you need, read is not really appropriate.

Code:
egrep '^.{13,14}6h' file >separatefile

(Or 6H if that's what you really mean; grep and friends are case sensitive by default. Add the -i option to ignore case distinctions.)

read variablename reads a line of input, which is subsequently available in $variablename -- you can of course call your variables anything you like.

("ray", huh? Had't come across that particular one before ...)
Last edited by era; 05-19-2008 at 09:21 AM.. Reason: egrep -i to ignore case
 

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LEARN ABOUT LINUX

xzgrep

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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