Easy learn linux command line- Part 8

the set permission for files is subject for this learning serious. Do you know, what it is file permission? which permissiones are in linux file systems? you learn their in this Part

Permits on Files
Command	Description
# chgrp group1 file1	change group of files
# chmod ugo+rwx directory1	set permissions reading (r), write (w) and (x) access to users owner (u) group (g) and others (o)
# chmod go-rwx directory1	remove permits reading (r), write (w) and (x) access to users group (g) and others (or
# chmod u+s /bin/file1	set SUID bit on a binary file - the user that running that file gets same privileges as owner
# chmod u-s /bin/file1	disable SUID bit on a binary file
# chmod g+s /home/public	set SGID bit on a directory - similar to SUID but for directory
# chmod g-s /home/public	disable SGID bit on a directory
# chmod o+t /home/public	set STIKY bit on a directory - allows files deletion only to legitimate owners
# chmod o-t /home/public	disable STIKY bit on a directory
# chown user1 file1	change owner of a file
# chown -R user1 directory1	change user owner of a directory and all the files and directories contained inside
# chown user1:group1 file1	change user and group ownership of a file
# find / -perm -u+s	view all files on the system with SUID configured
# ls -lh	show permits on files
# ls /tmp | pr -T5 -W$COLUMNS	divide terminal into 5 columns

source:linuxguide