Shulou(Shulou.com)06/02 Report--

We all have files stored on the computer-directories, photos, source code, and so on. They are so many. It's definitely beyond my memory. If there is no goal, it may take a long time to find the right one. In this article, let's take a look at how to find the file you need on the command line, especially the one you want quickly.

The good news is that the Linux command line has designed a lot of very useful command-line tools to find files on your computer. Let's take a look at three of them: ls, tree, and find.

Ls

If you know where the files are, you just need to list them or view information about them, and that's why ls is born.

Simply run ls to list all the visible files and directories in the current directory:

$lsDocuments Music Pictures Videos notes.txt

Add the-l option to view information about the file. At the same time, add the-h option to view the file size in a format that is easy for people to read:

$ls-lhtotal 60Kdrwxr-xr-x 2 adam adam 4.0K Nov 2 13:07 Documentsdrwxr-xr-x 2 adam adam 4.0K Nov 2 13:07 Musicdrwxr-xr-x 2 adam adam 4.0K Nov 2 13:13 Picturesdrwxr-xr-x 2 adam adam 4.0K Nov 2 13:07 Videos-rw-r--r-- 1 adam adam 43K Nov 2 13:12 notes.txt

Ls can also search for a specified location:

$ls Pictures/trees.png wallpaper.png

Or a specified file-- even if only part of the name:

$ls * .txtnotes.txt

What's missing? Want to view a hidden file? No problem, use the-an option:

$ls-a. .bash _ logout .bashrc Documents Pictures notes.txt.. .bash _ profile .vimrc Music Videos

Ls has many other useful options that you can combine to get the effect you want. You can learn more using the following command:

$man ls

Tree

If you want to see the tree structure of your files, tree is a good choice. It may not be installed by default on your system, you can use package Management DNF to install it manually:

$sudo dnf install tree

If you run tree without any options or parameters, it will start with the current directory and display a tree view of all the directories and files under it. As a reminder, this output can be very large because it contains all the directories and files in this directory:

$tree. |-- Documents | |-- notes.txt | |-- secret | | `--christmas-presents.txt |`-- work | |-- project-abc | | |-- README.md | | |-- do-things.sh | | `--project-notes.txt |`-- status-reports.txt |-- Music |-- Pictures | |-- trees.png | `--wallpaper.png |-- Videos`-- notes.txt.

If there are too many lists, use the-L option, followed by the number of levels you want to view, to limit the level of files listed:

$tree-L 2. |-- Documents | |-- notes.txt | |-- secret | `--work |-- Music |-- Pictures | |-- trees.png |`-- wallpaper.png |-- Videos`-- notes.txt

You can also display a tree view of a specified directory:

$tree Documents/work/Documents/work/ |-- project-abc | |-- README.md | |-- do-things.sh | `--project- notes.txt`-status-reports.txt

If you use tree to list a large tree view, you can combine it with less:

$tree | less

Once again, tree has a lot of other options available, and you can combine them to play a more powerful role. All of these options are available in the man man page:

$man tree

Find

So what if you don't know where the file is? Let's find them!

If you don't have find on your system, you can install it using DNF:

$sudo dnf install findutils

If no options or parameters are added when running find, it will recursively list all files and directories in the current directory.

$find../Documents./Documents/secret./Documents/secret/christmas-presents.txt./Documents/notes.txt./Documents/work./Documents/work/status-reports.txt./Documents/work/project-abc./Documents/work/project-abc/README.md./Documents/work/project-abc/do-things.sh./Documents/work/project-abc/project-notes.txt./.bash_logout./.bashrc./Videos./.bash_profile./.vimrc . / Pictures./Pictures/trees.png./Pictures/wallpaper.png./notes.txt./Music

But what's really powerful about find is that you can search with file names:

$find-name do-things.sh./Documents/work/project-abc/do-things.sh

Or just part of the name-like a file suffix. Let's look for all the .txt files:

$find-name "* .txt". / Documents/secret/christmas-presents.txt./Documents/notes.txt./Documents/work/status-reports.txt./Documents/work/project-abc/project-notes.txt./notes.txt

You can also find files according to their size. This method may be especially useful if you don't have enough space. Now list all files greater than 1 MB:

$find-size + 1M./Pictures/trees.png./Pictures/wallpaper.png

Of course, you can also search for a specific directory. Suppose I want to find a file under my Documents folder, and I know that the word "project" is in its name:

$find Documents-name "* project*" Documents/work/project-abcDocuments/work/project-abc/project-notes.txt

In addition to files, it also displays directories. You can limit your search to query files:

$find Documents-name "* project*"-type fDocuments/work/project-abc/project-notes.txt

Finally, find has a lot of options for you to use, and if you want to use them, the man man page can definitely help you:

$man findvia: https://fedoramagazine.org/commandline-quick-tips-locate-file/

Summary

The above is the editor to introduce to you the Linux command line quick skills to locate a file method, I hope to help you, if you have any questions, please leave me a message, the editor will reply to you in time. Thank you very much for your support to the website!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.