When you need to search for some files in Linux, you might typically use
locate commands. So, now you have a new alternative called
plocate works by creating an inverted index over trigrams (combinations of three bytes) in the search strings, which allows it to rapidly narrow down the set of candidates to a tiny list instead of linearly scanning through every entry.
Named for the posting lists that inspired it, the
plocate command aims to be a drop-in replacement for
mlocate. While it can still use
updatedb to create its database,
plocate can also use the
plocate-build utility to create an index.
mlocate, when multiple strings are searched,
plocate returns only the files that match all the search strings, rather than any file that matches even one string.
To show how fast the
plocate command is, the developer offers this benchmark on the tool’s homepage in which
plocate can find two files out of 27 million in just a few milliseconds:
Debian 11 Bullseye and newer, Debian 10 Buster backports, Ubuntu 21.04, 21.10, and 22.04:
sudo apt install plocate
Arch Linux and its derivatives:
sudo pacman -S plocate
sudo dnf install plocate
How to Use plocate
Now you can start using
plocate. First, you need to create its database (file index):
plocate command to look for a file is straightforward. For example, to search for a file named
backup.py you would type:
If there are files you cannot find, there are two likely culprits:
1. First, check that the database has been updated recently. Most users will want to use plocate’s
There is a service and a timer to update the database regularly. You can enable it, and it will automatically trigger the service with:
sudo systemctl enable plocate-updatedb.timer
sudo systemctl start plocate-updatedb.timer
2. The other reason a file isn’t shown is typically permissions. Check if you can find the files as root, and if you can, the problem is most likely that you don’t have access rights to the directory down from the root.
For more about the
plocate command in Linux, consult its manual page.