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+[#]: subject: "Whereis Command in Linux and BSD with Examples"
+[#]: via: "https://www.debugpoint.com/whereis-command-linux/"
+[#]: author: "Arindam https://www.debugpoint.com/author/admin1/"
+[#]: collector: "lkxed"
+[#]: translator: " "
+[#]: reviewer: " "
+[#]: publisher: " "
+[#]: url: " "
+
+Whereis Command in Linux and BSD with Examples
+======
+
+**Here’s a beginner’s guide on understanding whereis command in Linux & BSD with several examples.**
+
+![][1]
+
+_This article is part of the [Linux command][2] learning series._
+
+### whereis command
+
+The `whereis` command is a command line program that helps you to find out the path or location of any binary executable, source file or manual page.
+
+Before we show you how to use `whereis` command, let’s look at the syntax.
+
+### Syntax
+
+Here’s the syntax for whereis command:
+
+```
+whereis [OPTIONS] FILE_NAME
+```
+
+The argument of whereis command is the program name or file name you want to search. The argument is mandatory.
+
+By default, it searches for the program in the path defined in environment variables such as HOME, USER, SHELL, etc.
+
+Let’s take a look at some examples.
+
+### Examples of whereis command in Linux and BSD
+
+A simple example of whereis command is below where I am trying to search firefox. In the output below, you can see the list of paths containing firefox files or executables displayed.
+
+```
+$ whereis firefox
+
+firefox: /usr/bin/firefox /usr/lib64/firefox /etc/firefox /usr/share/man/man1/firefox.1.gz
+```
+
+![Simple example of whereis command in Linux][3]
+
+The command with option -l displays the list of paths where it searches. For example:
+
+```
+$ whereis -l
+
+bin: /usr/bin
+bin: /usr/sbin
+bin: /usr/lib
+bin: /usr/lib64
+bin: /etc
+bin: /usr/games
+bin: /usr/local/bin
+bin: /usr/local/sbin
+bin: /usr/local/etc
+bin: /usr/local/lib
+bin: /usr/local/games
+```
+
+If the whereis command doesn’t find anything, it only shows the argument’s name. For example, if I search nano in Linux where is it not installed, it outputs the following:
+
+```
+$ whereis nano
+```
+
+```
+nano:
+```
+
+You can always add multiple arguments if you want to search for more. For example below command searches for both bash and nano, and this is the output:
+
+```
+$ whereis bash nano
+
+bash: /usr/bin/bash /usr/share/man/man1/bash.1.gz /usr/share/info/bash.info.gz
+nano: /usr/bin/nano /usr/share/nano /usr/share/man/man1/nano.1.gz /usr/share/info/nano.info.gz
+```
+
+You can also search for specific file types, such as binaries, using -b option. The following command only tells you the binary paths of nano.
+
+```
+$ whereis -b nano
+
+nano: /usr/bin/nano /usr/share/nano
+```
+
+Similarly, the -s option searches for source files, and the -m option searches for manual pages.
+
+```
+$ whereis -m nano
+
+nano: /usr/share/man/man1/nano.1.gz /usr/share/info/nano.info.gz
+```
+
+You can also combine the above options for a more extensive search. For example, the following command searches for nano and firefox binary, manual pages and for bash, only manual pages.
+
+```
+$ whereis -bm nano firefox -m bash
+
+nano: /usr/bin/nano /usr/share/nano /usr/share/man/man1/nano.1.gz /usr/share/info/nano.info.gz
+firefox-m:
+bash: /usr/bin/bash /usr/share/man/man1/bash.1.gz /usr/share/info/bash.info.gz
+```
+
+Here’s a summary of the options:
+
+| Option | Description |
+| :- | :- |
+| **-b** | Search only for binaries. |
+| **-m** | Search only for manual sections. |
+| **-s** | Search only for sources. |
+| **-u** | Search for unusual entries. A file is said to be unusual if it does not have one entry of each requested type. Thus ‘whereis -m -u *’ asks for those files in the current directory which have no documentation. |
+| **-B** | Change or otherwise limit the places where whereis searches for binaries. |
+| **-M** | Change or otherwise limit the places where whereis searches for manual sections. |
+| **-S** | Change or otherwise limit the places where whereis searches for sources. |
+| **-f** | Terminate the last directory list and signals the start of file names, and must be used when any of the -B, -M, or -S options are used. |
+
+### Closing Notes
+
+I hope this article helps you to understand whereis command and its basics. You can also read the[whereis man pages][4] to learn more. Let me know if you have any questions.
+
+**This article is part of the [Linux command][2] learning series**.
+
+[_Using Mastodon? Follow us at floss.social/@debugpoint_][5]
+
+--------------------------------------------------------------------------------
+
+via: https://www.debugpoint.com/whereis-command-linux/
+
+作者：[Arindam][a]
+选题：[lkxed][b]
+译者：[译者ID](https://github.com/译者ID)
+校对：[校对者ID](https://github.com/校对者ID)
+
+本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
+
+[a]: https://www.debugpoint.com/author/admin1/
+[b]: https://github.com/lkxed
+[1]: https://www.debugpoint.com/wp-content/uploads/2023/01/whereis-head.jpg
+[2]: https://www.debugpoint.com/category/linux-commands
+[3]: https://www.debugpoint.com/wp-content/uploads/2023/01/Simple-example-of-whereis-command-in-Linux.jpg
+[4]: https://linux.die.net/man/1/whereis
+[5]: https://floss.social/@debugpoint