Find files.

      locate pattern

locate searches a database for all pathnames which match the specified pattern. The database is recomputed periodically, (about once a week) and contains the path-names of all files which are publicly accessible.

Shell globbing and quoting characters (`*', `?', ``\'', `[' and `]') can be used in pattern, although they will have to be escaped from the shell.

Preceding any character with a backslash (`\') eliminates any special meaning which it can have. The matching differs in that no characters must be matched explicitly, including slashes (`/').

As a special case, a pattern containing no globbing characters (`foo') is matched as though it were `*foo*'..

To force a build/update of the database:

$ cd /
$ sudo /usr/libexec/locate.updatedb

The update can alternatively be called via a plist which simply executes /usr/libexec/locate.updatedb
$ sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.locate.plist


Search the database for files with names containing "foo",
or in folders with names containing "foo"

$ locate foo

Search the database for files (but not in folders) with names ending in ".jpg"

$ locate '*.jpg'

File locations


Script to update database

Faster Searches

On modern hardware it is often faster to create and search an uncompressed index file of all filenames than to use the compressed locate database, source: Julia Evans [x]

sudo find / > database.txt
grep Alanis database.txt

[I do not] carry such information in my mind since it is readily available in books. ...The value of a college education is not the learning of many facts but the training of the mind to think ~ Albert Einstein


locate man page - Apple.com
find - Search for files that meet a desired criteria
grep - Search file(s) for lines that match a given pattern
ln - Make links between files (hard links, symbolic links)
ls - List information about file(s)
mdfind - Spotlight search
whereis - Locate a command.
which - Locate a program file in the user's path

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