Linux Command Directory
This directory of Linux commands is from Linux in a Nutshell, 5th Edition.
Click on any of the 687 commands below to get a description and list of available options. All links in the command summaries point to the online version of the book on Safari Bookshelf.
look [options] string [file]
Search for lines in file (/usr/dict/words by default) that begin with string.
Use alternate dictionary, /usr/dict/web2.
Compare only alphanumeric characters.
Search is not case-sensitive.
Stop checking after the first occurrence of character.