<SourceBench/> Your place to share code stuff » grep http://sourcebench.com Tue, 04 May 2010 07:57:45 +0000 http://wordpress.org/?v=2.9 en hourly 1 Ack is better than grep! – And it’s not only their slogan. http://sourcebench.com/post/ack-is-better-than-grep-and-its-not-only-their-slogan/ http://sourcebench.com/post/ack-is-better-than-grep-and-its-not-only-their-slogan/#comments Sun, 20 Dec 2009 20:14:49 +0000 The SourceBench http://sourcebench.com/post/ack-is-better-than-grep-and-its-not-only-their-slogan/ I recently was pointed to ack for scanning a huge pile of files for a certain pattern. So far I was always using grep, awk, cut, sed and such in combination with find to build whatever I needed. But having a look at ack reveals that my life could have been much easier. Here are some simple examples:

Search for a pattern recursively through directories, while ignoring .svn, CVS and other VCS directories:
With grep: grep pattern $(find . -type f | grep -v '\.svn')
With ack: ack pattern

Search for a pattern in all perl files, while ignoring .svn directories:
With grep: grep pattern $(find . -name '*.pl' -or -name '*.pm' -or -name '*.pod' | grep -v .svn)
With ack: ack --perl pattern

That’s it for the basics. More on their manual page at http://betterthangrep.com/

Just a last one:
Get a list of all functions and their parameters attached to your “wp_head” action hook of a WordPress installation.
With grep: please don’t make me do it.
With ack: ack "add_action\((.*[\"|'](.*)[\"|'][,|\s]+.*)\)" --output="hook: \$1, params: \$2"

]]> http://sourcebench.com/post/ack-is-better-than-grep-and-its-not-only-their-slogan/feed/ 1 Get a list of urls/domains from a text file http://sourcebench.com/languages/bash/get-a-list-of-urlsdomains-from-a-text-file/ http://sourcebench.com/languages/bash/get-a-list-of-urlsdomains-from-a-text-file/#comments Fri, 04 Dec 2009 23:05:54 +0000 The SourceBench http://sourcebench.com/languages/bash/get-a-list-of-urlsdomains-from-a-text-file/ sed 's/http/\^http/g' FILENAME | tr -s "^" "\n" | grep http| sed 's/[\ |\\\|\"].*//g' | sed "s/['].*//g" | sort | uniq]]> http://sourcebench.com/languages/bash/get-a-list-of-urlsdomains-from-a-text-file/feed/ 1 Search for a function definition in a bunch of php files http://sourcebench.com/languages/bash/search-for-a-function-definition-in-a-bunch-of-php-files/ http://sourcebench.com/languages/bash/search-for-a-function-definition-in-a-bunch-of-php-files/#comments Fri, 27 Nov 2009 13:40:08 +0000 The SourceBench http://sourcebench.com/languages/bash/search-for-a-function-definition-in-a-bunch-of-php-files/ find . -name *.php -exec grep -HE "function FUNCTION_NAME" {} \;]]> http://sourcebench.com/languages/bash/search-for-a-function-definition-in-a-bunch-of-php-files/feed/ 0