Editing Find (Unix) (section)

=== Searching files by time ===
Date ranges can be used to, for example, list files changed since a backup.

* {{code|-mtime}} : modification time
* {{code|-ctime}} : inode change time
* {{code|-atime}} : access time

Files modified a relative number of days ago:
* +[number] = At least this many days ago.
* -[number] = Less than so many days ago.
*  [number] = Exactly this many days ago.
* Optionally add <code>-daystart</code> to measure time from the beginning of a day (0 o'clock) rather than the last 24 hours.

Example to find all text files in the document folder modified since a week (meaning 7 days): 
<syntaxhighlight lang="console">
$ find ~/Documents/ -iname "*.txt" -mtime -7
</syntaxhighlight>

Files modified before or after an absolute date and time:
* <code>     -newermt YYYY-MM-DD</code>: Last modified after date
* <code>-not -newermt YYYY-MM-DD</code>: Last modified before date

Example to find all text files last edited in February 2017:
<syntaxhighlight lang="console">
$ find ~/Documents/ -iname "*.txt"  -newermt 2017-02-01 -not -newermt 2017-03-01
</syntaxhighlight>

*<code>-newer [file]</code>: More recently modified than specified file.
** <code>-cnewer</code>: Same with inode change time.
** <code>-anewer</code>: Same with access time.
** Also prependable with <code>-not</code> for inverse results or range.

List all text files edited more recently than "document.txt":
<syntaxhighlight lang="console">
$ find ~/Documents/ -iname "*.txt"  -newer document.txt
</syntaxhighlight>