linux - change file permissions

from the ls command:

 -rw-r--r--  1  bob  users  1892  Jul 10  18:30 linux_course_notes.txt

Owner
Group
World

chmod owner group world FileName

chmod 644 myDoc.txt

4 read (r)
2 write (w)
1 execute (x)

chown OPTION... OWNER:GROUP FILE...

option and group are optional

Resources
linux.org - File Permissions - chmod

filename:	linux - change file permissions
filename:	linux%20%2D%20change%20file%20permissions
last edit:	January 08 2016 16:35:29 (-5356250 minutes ago)
ct	= 1130913907.000000 = November 02 2005 01:45:07
ft	= 1452288929.000000 = January 08 2016 16:35:29
dt	= -321375022.000000