How to Hide Files and Directories in Linux Terminal?

Hide Files and Directories in the Linux Terminal

Hiding files and directories in Linux is a way to make them invisible to regular users, ensuring that sensitive data or important configuration files remain secure. There are several methods to achieve this

Using Dot (.) Prefix

The easiest method is to use a dot (.) prefix. Files or directories starting with a dot are considered hidden. For example:

# To hide a directory
mv test .test

# To hide a file
mv document.txt .document.txt

Hidden files can still be accessed using ls with the -a option.

Using Hidden Attribute

This method uses the hidden attribute, requiring root privileges. To set the hidden attribute for a file or directory:

# Set hidden attribute
sudo chattr +h document.txt
sudo chattr +h test

# Unset hidden attribute
sudo chattr -h document.txt
sudo chattr -h test

Hidden files can be viewed using ls -a. This method offers more security as it requires root privileges.

Using Permissions

This method involves setting permissions to “000” to make files or directories inaccessible to anyone, including the owner:

# Set permissions to "000" for a file
sudo chmod 000 document.txt

# Set permissions to "000" for a directory
sudo chmod 000 test

Accessing files with these permissions requires sudo ls -a.