File permission using chmod
‘chmod’ can be used directly to change the file permission of files in a simple way by giving the permission for root, user and others in a numeric form where the numeric value are as follows:
r(read-only)=>4
w(write)=>2
x(executable)=>1
e.g. chmod 754 text will change the ownership of owner to read, write and executable, that of group to read and executable and that of others to read only of the text file.
r(read-only)=>4
w(write)=>2
x(executable)=>1
e.g. chmod 754 text will change the ownership of owner to read, write and executable, that of group to read and executable and that of others to read only of the text file.