How to list hidden files linux

Linux / Unix – Find And List All Hidden Files Recursively

I am a new Unix system shell user. I need to find and list all hidden files including directories on a Linux or Unix-like system. How can I recursively list all hidden files and directories? How do I save result in a text file?

You need to use the find command to list all hidden files recursively on a Linux or Unix like systems.You can also use the ls command to list hidden files.

Tutorial details
Difficulty level	Easy
Root privileges	No
Requirements	None
Est. reading time	2m

What is a hidden file in Linux or Unix?

In the Unix and Linux based system, a hidden file is nothing but file name that starts with a “.” (period). You can not see hidden files with the ls command.

View hidden files with the ls command

You can pass the -a options to the ls command to see hidden file:
ls -a
OR
ls -al
OR
ls -al | more
Sample outputs:

Fig.01: Use ls command to see hidden files

Where ls options are as follows:

• -l : Use a long listing format.
• -d : Show directories themselves, not their contents.
• .[!.]?* OR .?* : Force ls to show only hidden files.

Recursively list all hidden files and directories on Linux/Unix

The basic syntax is as follows for the find command:
find /dir/to/search/ -name «.*» -print
OR
find /dir/to/search/ -name «.*» -ls
Search only hidden files:
find /dir/to/search/ -type f -iname «.*» -ls
Search only hidden directories:
find /dir/to/search/ -type d -iname «.*» -ls
Use find command as follows:
find /dir/to/search -path ‘*/.*’ -print
find /dir/to/search -path ‘*/.*’ -ls
In this example, search $HOME for all hidden files and dirs:
find $HOME -name «.*» -ls
Sample outputs:

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Linux show hidden files and folders with simple commands

Table of Contents

In this article we will cover below topics

• Create hidden files and folders/directories
• Linux show hidden files and folders/directories
• Linux find hidden files and folder/directories
• Check size of hidden files and folder/directories

The commands from this article to view hidden files and folders can be used across any Linux platform such as Ubuntu, Debian, Linux Mint, RHEL, CentOS, SuSE etc or any Unix node such as HP-UX, Solaris, etc.

I am using RHEL/CentOS 8 node installed on Oracle VirtualBox . Please do let me know via comment section if you face any issues following the commands from this article to view hidden files or folders in Linux or Unix.

Create hidden Files

To create hidden files you just need to make sure the filename starts with dot character ( . ). In Linux any filename which starts with dot ( . ) character is considered as hidden file. For example here I create a normal file using touch command

To list the file, as you see since the filename does not starts with dot ( . ) character, it is not hidden

Next we rename the file and make it .hidden_file starting with (.)

Next if you try to list the available files, we don’t see hidden_file anymore.

Check alias on this node

As you see there is an alias for ls command so by default it is configured to hidden files and folders. To remove this temporarily execute » unlias ls «

Next show hidden files and folders using ls , now this works as expected as we don’t see hidden folders or files.

This is temporary fix only for the current session, you need to check where this setting is configured for alias , it may be /etc/profile or /etc/bashrc some other system file based on your distribution.

Similarly to create hidden files you can just put a ( . ) infront of the filename, for example to create hidden files with filename » my_file «:

Create hidden folder or directory

The steps to create hidden folder or directory in Linux or Unix is similar to create hidden files. We just need to make sure the folder name starts with dot ( . ) character.

Now list the available files in current directory, as expected we don’t see any directory/folder since the folder is hidden. So we were able to create hidden folder here.

Linux show hidden files and folders with ‘ls’ command

• In this example we will use ls command in Linux show hidden files and folders.
• We can use ls command with » -a » to show all files including hidden files and folder.
• With -a «we do not ignore entries starting with . » that means also Linux show hidden files and folders.
• For example to show hidden files and folders which we created in above steps, navigate to your directory and execute ls -a
• We have also used -l to give us a long list so we use ls -al to show all files under test directory in long list format

As you see we were able to show hidden folders and files with » ls -a » which we had created earlier in this article.

Linux show hidden files and folders with ‘find’ command

Now with ls command we were able to show hidden files in one directory or may be multiple directories in Linux and Unix. But with ls it is little tricky to show hidden folders and files across all partitions. Here we can find hidden files using find command in Linux or Unix.

Now from our chapter » create hidden files » and » create hidden directory «, we know that hidden files start with dot ( . ) character. So we can use this trick with find command to find hidden files.

For example to find hidden files use -type f under /etc/ directory we can use below command

Here we are only search of files using » -type f » and any filename starting with dot ( . )

With Linux show hidden files and folders we can use the same command with -type d to find hidden folders under /usr

Here we could not have used » ls -a » to show hidden files in all these directories without using extra commands, so find is a better alternative to find hidden folder and files in Linux or Unix.

Check size of hidden files and folders

Now once you find hidden files or folders, you may also wish to check size of hidden files or folders.

For example we will find hidden files under our

So we have two hidden files, we can use ls with -Sh to check size of hidden files but it again has it’s own challenges.

• -S means sort by file size
• -h means print sizes in human readable format (e.g., 1K 234M 2G)

We use ls -lSha to show and check size of hidden file but as you see ls could only identify .hidden_file in the current folder but missed .hidden_file_2 available inside .hidden_directory

We will use du command to check size of hidden files in Linux or Unix. du command is used to estimate file space usage. We must combine du with find commands to first we find hidden files and folders and then we check size of hidden files using du command

For example to check size of hidden files under /test folder

Similarly to check size of hidden files under /tmp folder

Lastly I hope the steps from this article to Linux show hidden files and folders, create hidden files, create hidden folder and find hidden files and folders in Linux and Unix was helpful. So, let me know your suggestions and feedback using the comment section.

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how to show or display hidden files in linux

In Linux, as you should already know, there is the concept of hidden files and hidden folders. It is not exactly hidden in the literal sense, but all that means is that the file managers and file system utilities will not display these types of files (or folders) by default.

The hidden file concept is not a security feature and it does not provide any extra protection compared to other files. However, there are a couple of reasons (or benefits) for these kind of files.

• These files are usually a mechanism to store user preference or system files that are not modified by user regularly.
• They are also used by different utilities to store configuration and state of the programs. As these files are not actively used by user on a normal day-to-day basis, it makes sense to hide them in most cases.
• It also allows the file manager utilities to prevent cluttering up the user interface and provide a soft division between user files and user specific configuration files.

Any file or folder whose name start with a dot (.) is a hidden file, also known as dot file. These files will not be displayed by default when listing the contents of a folder. These files can be referenced just as any file, by using the name of the file (including the dot).

We will see how you can view these files using the most popular directory listing commands and file managers.

ls command

The ls command is probably the most used command line utility and it lists the contents of the specified directory. In order to display all files, including the hidden files in the folder, use the -a or –all option with ls.

This will display all the files, including the two implied folders: . (current directory) and .. (parent folder). If you want to omit the display of these two folders, then use the -A or –almost-all option.

This is quite useful, if you are using the output of the command as input to some other script. You probably do not the script to loop in the current folder (depending on the script).

If you want to display only the hidden files, then you will need to specify a regular expression with the ls command., the following will display just the hidden file and folders.

The -d option is to ensure that the directory contents are not printed out for each directory in the list.

dir command

Another popular command used to display directory contents is dir. Almost all options for dir is the same as ls, which means everything that was shown for ls in the previous section will work for dir as well.

will display all files, hidden files and the implied folders (. and ..).

will display all files, folders including the hidden folders but excluding both . and ..

will display just the hidden files and hidden folders.

KDE File Manager (dolphin)

The default file manager in KDE is Dolphin. The default setting in Dolphin is not to display hidden or dot files. There are couple of different ways you can enable the option here.

The easiest is probably the keyboard shortcut Alt+. (Alt and dot). You can easily enable the display and disable it again using the same shortcut.

The other option is using the menu option. Click on the Hamburger icon on the menu bar (for Settings/Configuration). In the drop down menu, you will see the option named Show Hidden Files. Click and select it on it to enable the display of hidden files.

You can leave that option selected, if you want to always display the hidden files. The other commonly used file manager is Konqueror, which uses embedded dolphin to display the file system, as well.

Gnome File Manager (files or nautilus)

The default file manager in Gnome on most distros is Gnome Files. It was formerly known as Nautilus. The keyboard shortcut to display hidden files in Nautilus is Ctrl+H. This shortcut can be used to toggle the display of dot files.

The other option is to change it in the configuration. Open Edit -> Preferences and navigate to the Views tab. Select the option Shown hidden and backup files. In modern or latest versions, this option is in Files -> Preferences menu.

Xfce File Manager (thunar)

Xfce is a popular light weight desktop environment, and the default file manager is thunar. The keyboard shortcut is display hidden files is again Ctrl+H just as with Gnome File Manager.

You can find the option with in the menu as well, as with other file managers. Click on View in the menu bar, and select Show Hidden Files option.

Midnight Commander

Midnight Commander is a command line based file manager which has a loyal following. The keyboard shortcut to display dot files here is Alt + . (Alt-Period).

There is also a configuration setting with in Panel Options. Open Options from the menu and then Panel Options. Select the option Show Hidden Files.

No matter which file manager you are using, there should be an option to display hidden files. Most times, it is disabled by default and as it should be. You can try first by right clicking and checking the context menu. The next place to check is either the Settings or Preferences dialog which is often in the Edit or View menu.

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How to Show Hidden Files in Linux

Home » SysAdmin » How to Show Hidden Files in Linux

Linux, by default, hides many of the sensitive system files. Hidden files are usually system or application files, concealed to prevent accidental changes.

This guide will show you how to display and work with hidden files in Linux.

• A system running Linux
• Access to a terminal window / command line (optional)

Note: Some directories require administrator, root, or sudo privileges to access. Depending on the files you want to access, you may need to switch users or use the sudo command.

How to Show Hidden Files

Show Hidden Files From the Command Line

To display all the files in a directory, including hidden files, enter the following command:

The ls command lists the contents of the current directory. The –a switch lists all files – including hidden files.

To list regular and hidden files in a different directory than your current working location:

Replace /etc with any other directory.

Show Hidden Files in a Graphical Interface (GUI)

There’s a simple method to show hidden files if you’re more comfortable working in Gnome (or any other graphical interface).

1. First, browse to the directory you want to view.

2. Then, press Ctrl+h .

If Ctrl+h doesn’t work, click the View menu, then check the box to Show hidden files.

Note: Ctrl+h works in newer Ubuntu and CentOS environments. If you’re running an older or different version, it may not work.

How to Hide Files

Hide File or Directory Using the Linux Command Line

To mark a file as hidden, use the mv (move) command.

1. First, create a test file. Use the touch command to create an empty test.txt file:

2. Then, hide the file by moving it under a new filename. The period (.) at the beginning of the new filename indicates that it’s hidden:

3. To verify the file is now hidden, display the contents of the current directory:

4. Now, list the contents, including hidden files:

You should see test.txt in the second listing.

Note: The process is entirely the same for directories. Use the mv command with a period (.) at the beginning of the new directory name.

Hide a File in a Graphical Interface (GUI)

You can also mark a file as hidden using a graphical interface.

1. Right-click the file you want to hide.

2. Then, select Rename.

3. Make the file hidden by placing a period at the beginning of the filename.

Use the same process to hide a directory.

How to Create Password-Protected Hidden Files

Create Password-Protected, Hidden File From the Command Line

1. To create a hidden and password-protected archive file from the command line, start by creating a new text file:

2. Next, compress and encrypt that file:

3. You’ll be asked to enter and confirm a password for the file.

4. Then, use the ls command – you should see test2.zip in the file list.

5. Next, set the .zip file to hidden by entering:

6. Finally, use ls and ls –a to confirm and verify the file is hidden.

Create a Hidden, Password-Protected File From the Graphical Interface

Encrypting a file requires more steps in the graphical version of Linux.

1. Start by opening the File Manager to your home directory.

2. Right-click an empty area, then click New Folder (a folder and a directory are the same things).

3. Name the folder test3 and click Create.

4. Next, click Activities > Search > type archive manager > launch the Archive Manager.

5. Drag and drop the new test3 folder into the Archive Manager window.

6. The system will ask: Do you want to create an archive with these files? Click Create Archive.

7. In the Create Archive dialog box, the filename should be test3. Just to the right, click the drop-down and select the .zip format.

8. Click Other options near the bottom. Type a password to use for your archive, then click Save.

9. Close the Archive Manager. You should now see a test3.zip file in the home directory.

10. Right-click the test3.zip file, click Rename, and add a period at the beginning of the filename.

You should now be able to show and hide hidden files in Linux. These commands can be especially useful if you need to find configuration files.

Also, you can find web browser data, certain application caches, and logs stored in hidden files.

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