Linux grep command 1. effect The grep command in Linux system is a powerful text search tool. It can use regular expressions to search text and print out matching rows. The full name of grep is Global Regular Expression Print, which represents the version of global regular expression, and its permissions are all users. 2. format Grep [options] 3. main parameters [options] main parameters: - C: only output the count of the matched rows. I: a case insensitive (only applicable to single character). H: query file does not display the file name. L: query file contains only output file name, character. N: display the matching line and line number.

Filename	Size	Update
linux grep命令.docx	25014	2017-05-01

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