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separate system search

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Malin Freeborn 2025-02-12 15:36:40 +01:00
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55
basics/locating.md
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@ -6,57 +6,28 @@ tags: [ "Basics" ]
`type` shows what kind of thing you're running, be it an alias, function, or binary program.
```bash
type cmus
```sh
type cd
type ls
type -P ls
type -a cat
```
# Whereis the Program
Ask where the `angband` program is, along with all its configuration files:
Where is `grep` and all its configuration files?
`whereis angband`
Also `which` shows where a binary file (the program) is,
```bash
which cmus
```sh
whereis grep
```
# Search Instantly with `plocate`
Which one of these is the binary file which you actually use?
You can search every file on the computer instantly by installing `plocate`.
Once installed, run `sudo updatedb` to create the database of (nearly) every file on the computer.
Check how big the database is:
```bash
du -h /var/lib/plocate/plocate.db
```sh
which grep
```
Once you have the database, you can find nearly any file instantly.
# More
- Search for gifs: `locate .gif`
- Search for gifs in the `/usr/` directory: `locate /usr/ .gif`
- Search for jpg images with 'dog' or 'Dog' in the name: `locate -i dog jpg`
- Search for videos: `plocate --regex '.mp4$|.mkv$|.wmv$|.webm$|.mov$|.avi$'`
For best results, run `updatedb` regularly, perhaps in [crontab](../system/cron.md).
## Search More Places
`plocate` will not search `/tmp/`, because nobody cares about those files, and won't search inside `/mnt/`, because that's where USB sticks get mounted, so the files keep changing as USB sticks come and go.
Change where `plocate` searches by editing the configuration file at `/etc/updatedb.conf`.
By default, the `/mnt` directory is 'pruned' from the database.
So if you want to search `/mnt` for videos, remove the word `/mnt` from the configuration file.
```bash
cat /etc/updatedb.conf
sudo sed 's#/mnt/##' /etc/updatedb.conf
sudo updatedb
plocate --regex '.mp4$|.mkv$|.wmv$|.webm$|.mov$|.avi$'
```
- [Search instantly with `plocate`](data/search_system.md)

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data/search_system.md Normal file
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---
title: "Search System"
tags: [ "data", "search", "locate", "plocate" ]
requires: "cron"
---
You can search every file on the computer instantly by installing `plocate`.
Once installed, run `sudo updatedb` to create the database of (nearly) every file on the computer.
Check how big the database is:
```sh
du -h /var/lib/plocate/plocate.db
```
Once you have the database, you can find nearly any file instantly.
- Search for gifs: `locate .gif`
- Search for gifs in the `/usr/` directory: `locate /usr/ .gif`
- Search for jpg images with 'dog' or 'Dog' in the name: `locate -i dog jpg`
- Search for videos: `plocate --regex '.mp4$|.mkv$|.wmv$|.webm$|.mov$|.avi$'`
For best results, run `updatedb` regularly, perhaps in [crontab](../system/cron.md).
## Search More Places
`plocate` will not search `/tmp/`, because nobody cares about those files, and won't search inside `/mnt/`, because that's where USB sticks get mounted, so the files keep changing as USB sticks come and go.
Change where `plocate` searches by editing the configuration file at `/etc/updatedb.conf`.
By default, the `/mnt` directory is 'pruned' from the database.
So if you want to search `/mnt` for videos, remove the word `/mnt` from the configuration file.
```bash
su root
cat /etc/updatedb.conf
sed -i 's#/mnt/##' /etc/updatedb.conf
updatedb
exit
```
Now you can search in `/mnt` for films:
```sh
plocate --regex '.mp4$|.mkv$|.wmv$|.webm$|.mov$|.avi$'
```