Big Data is better Data

Display size of all subdirectories from current directory in Linux

To display the size the command is "du".

du

You could check the man page and help for the command, a useful modifier is "-h", which as in the "ls" command it converts the size to a more practical representation.

du -h

Show and display human readable size in files and directories listing on Linux

"h" is the ls modifier required to display GB, MB, KB and related information.

ls -lh
ls -lah