Difference between revisions of "Grep"

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'''grep''' ('''G'''lobal '''R'''egular '''E'''xpression '''P'''rint) is a [[:Category:Linux Command Line Tools|command line utility]] that for a given a list of files or standard input to read, grep searches for lines of text that match one or many regular expressions, and outputs only the matching lines.
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'''grep''' ('''G'''lobal '''R'''egular '''E'''xpression '''P'''rint; g/re/p; global / regular expression / print) is a [[:Category:Linux Command Line Tools|command line utility]] that for a given a list of files or standard input to read, grep searches for lines of text that match one or many regular expressions, and outputs only the matching lines.
  
 
==See also==
 
==See also==
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*[http://www.jedsoft.org/jed/ rgrep] — ''recursive grep''
 
*[http://www.jedsoft.org/jed/ rgrep] — ''recursive grep''
 
*[[wikipedia:pgrep|pgrep]] — displays the processes whose names match a regular expression
 
*[[wikipedia:pgrep|pgrep]] — displays the processes whose names match a regular expression
*[http://robur.slu.se/jensl/ugrep/ ugrep] &mdsah; only do basic regexp string matching
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*[http://robur.slu.se/jensl/ugrep/ ugrep] — only do basic regexp string matching
 
*[http://search.cpan.org/src/CWEST/ppt-0.14/html/commands/grep/tcgrep.html tcgrep] — rewrite of grep which uses [[Perl]] [[regular expression]] syntax
 
*[http://search.cpan.org/src/CWEST/ppt-0.14/html/commands/grep/tcgrep.html tcgrep] — rewrite of grep which uses [[Perl]] [[regular expression]] syntax
 
*[http://apachegrep.sourceforge.net/ apachegrep] — a Perl program to help webmasters go through their [[apache]] logs
 
*[http://apachegrep.sourceforge.net/ apachegrep] — a Perl program to help webmasters go through their [[apache]] logs
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*[http://www.linuxfocus.org/~guido/ webgrep] — a set of 7 search utilities for web-masters
 
*[http://www.linuxfocus.org/~guido/ webgrep] — a set of 7 search utilities for web-masters
 
===Other===
 
===Other===
*[http://www.cs.helsinki.fi/u/jjaakkol/sgrep.html Structure grep]
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*[http://www.cs.helsinki.fi/u/jjaakkol/sgrep.html Structure grep (sgrep)]
*[http://www.dcc.uchile.cl/%7Egnavarro/software/ Nondeterministic reverse grep]
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*[http://www.dcc.uchile.cl/%7Egnavarro/software/ Nondeterministic reverse grep (NR-grep)]
 
*[http://www.grouse.com.au/ggrep/ Grouse Grep (ggrep)]
 
*[http://www.grouse.com.au/ggrep/ Grouse Grep (ggrep)]
 
*[http://www.vdesmedt.com/%7Evds2212/grep.html Python Grep (pygrep)]
 
*[http://www.vdesmedt.com/%7Evds2212/grep.html Python Grep (pygrep)]
*[http://www.ff.iij4u.or.jp/%7Enrt/lv/ Multilingual Grep]
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*[http://www.ff.iij4u.or.jp/%7Enrt/lv/ Multilingual Grep (lv)]
  
 
==External links==
 
==External links==
*[http://www.gnu.org/software/grep/ GNU grep] - the grep that usually comes with [[Linux distribution]]s
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*[http://www.gnu.org/software/grep/ GNU grep] — the grep that usually comes with Linux distributions
 
*[http://unixhelp.ed.ac.uk/CGI/man-cgi?grep GNU grep] man page
 
*[http://unixhelp.ed.ac.uk/CGI/man-cgi?grep GNU grep] man page
 
*[http://www.linfo.org/grep.html The grep Command] - by The Linux Information Project (LINFO)
 
*[http://www.linfo.org/grep.html The grep Command] - by The Linux Information Project (LINFO)

Latest revision as of 08:45, 17 October 2017

grep (Global Regular Expression Print; g/re/p; global / regular expression / print) is a command line utility that for a given a list of files or standard input to read, grep searches for lines of text that match one or many regular expressions, and outputs only the matching lines.

See also

  • agrepapproximate grep to facilitate fuzzy string searching
  • fgrep — fixed pattern searches
  • egrep — for searches involving more sophisticated regular expression syntax
  • ngrepnetwork grep
  • rgreprecursive grep
  • pgrep — displays the processes whose names match a regular expression
  • ugrep — only do basic regexp string matching
  • tcgrep — rewrite of grep which uses Perl regular expression syntax
  • apachegrep — a Perl program to help webmasters go through their apache logs
  • rexgrep — GUI frontend to grep
  • webgrep — a set of 7 search utilities for web-masters

Other

External links