I tried to switch to 'root' in CentOS by running su
. It does change to 'root', but it doesn't seem to be a real 'root' user.
For example, by default, ifconfig
command in /sbin
is not found in the path for a normal user, but for 'root', the command can be found. When I run su
, I still get bash: ifconfig: command not found
output when I try to run ifconfig
.
However, when I run su -
, ifconfig
just works.
What is the difference between su
and su -
in CentOS?