The HELL that find is!

Short tutorial on Linux find command.

• To remove all files named 'a.out' or '*.o' that have not been accessed for a week:
• find / \( -name a.out -o -name '*.o' \) -atime +7 -exec rm {} \;
• The rm command is executed once for each file.
• find / \( -name a.out -o -name '*.o' \) -atime +7 -exec rm {} +
• To find all files below the directory 'documents' that contain the regular expression 'string':
• find documents -type f -exec grep string {} +
• To find all files in the directory 'home', not descending into its subdirectories:
• find home ! -name home -prune
• To check whether the file 'diary' has been updated within the last two days; the name of the file is printed if true, and is not printed otherwise:
• find diary -prune -mtime -2