The meaning and usage of linux cd

What does linux cd mean?

In Linux, cd means change directory.

The Linux cd command is used to switch the current working directory to dirName (directory parameter).

The dirName representation can be an absolute path or a relative path. If the directory name is omitted, the directory is changed to the user's home directory (that is, the directory where the user is when he or she logs in).

In addition, "~" also means the home directory, "." means the current directory, and ".." means the directory above the current directory.

grammar

cd [dirName]

dirName: The target directory to switch to.

Examples

Jump to /usr/bin/:

cd /usr/bin

Jump to your home directory:

cd ~

Jump to the two levels above the current directory:

cd ../..