Ubuntu Wiki

This is a ManXample entry for the "grep" command.

• Grep is used to search through the output of other commands or sources for strings, the following are some common invocations:

1) To search all running processes and daemons for the string "happy", use the following command:

• sudo ps -aux | grep happy

2) To search a file for the string "happy" and put the results in a file, use the following command:

• sudo cat file.txt | grep happy > output.txt