r read permission

w writepermission

x the shell will attempt to execute the fie when its name is entered as command

Read permission means the contents of the directory can be listed with “ls” command

Write permission means can we make files in directory

Decimal values for folder permission

Read 4

Write 2

Execute 1

Permission set to a folder

Command is

Chmode 7 6 4

Eg chmode 4+2+2 user 4+2 group 4 others