it creates a symbolic link that only points to the directory in which source is locat-
ed, enabling linking across le systems.
-s
Creates a symbolic link
cd [options] [directory]
Changes the current directory. cd without any parameters changes to the user's
home directory.
mkdir [options] directory
Creates a new directory.
rmdir [options] directory
Deletes the specied directory if it is already empty.
chown [options] username[:[group]] files
Transfers ownership of a le to the user with the specied username.
-R
Changes les and directories in all subdirectories
chgrp [options] groupname files
Transfers the group ownership of a given file to the group with the specied
group name. The le owner can change group ownership only if a member of
both the current and the new group.
chmod [options] mode files
Changes the access permissions.
The mode parameter has three parts: group, access, and access type. group accepts
the following characters:
u
User
g
Group
o
Others
For access, grant access with + and deny it with -.
The access type is controlled by the following options:
r
Read
w
Write
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