The command line utilities that I use most for searching/finding files in Linux operating systems are: findsearch for files in a directory grepprint lines matching a pattern locatefind files by name find The basic format of a find command is: find [location] [criteria] [actions] Some common examples are listed below: Find files by some name pattern: find /etc -name"*.conf" Find files by size find /var/log -size +1M There are other really useful filter options like: -empty, -newer, -perm, -typ...