View how much space is occupied by the directory and how many files

To view the space occupied by a directory:

Du-sh Directory

See how many files are in a directory:

Find Directory-type F | Wc-l

Find command Example

Find how many C files are in the current directory

Find./-type f-name "*.C" | Wc-l

Find command Simple explanation

The parameter-type represents the type of file, and the file type corresponds to the following relationship

B   block file (e.g. memory)
C   character file (such as    serial port)
d   directory file    (directory is also a file)
p   famous pipeline    (FIFO)
F   normal file
L   compliant link

Parameter-name Specify a filename, you can use the wildcard characters inside the shell