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Full Discussion: Grep commands: need some practice help please
Homework and Emergencies Homework & Coursework Questions Grep commands: need some practice help please Post 302998626 by bakunin on Monday 5th of June 2017 07:04:39 AM
Old 06-05-2017
Quote:
Originally Posted by asaint
You can pipe the output of a grep command into wc -l to count lines instead of displaying them.
You are perhaps not supposed to know that, but to show you that it pays off to come to unix.com for advice, here is how you might earn bonus points:

There is a way you can do that (counting that is) without using wc -l. You can find out how by carefully reading the man page of grep as Neo suggested.

You might also want to read this to get you started.

I hope this helps.

bakunin
Last edited by bakunin; 06-05-2017 at 08:12 AM..
 

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LEARN ABOUT PLAN9

zgrep

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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