[RHEL] Bash 자동완성 해제

# cat /etc/profile 
...
if [ -z "$INPUTRC" -a ! -f "$HOME/.inputrc" ]; then
INPUTRC=/etc/inputrc
fi
...

On Fedora, /etc/profile sets the inputrc file to /etc/inputrc unless

~/.inputrc exists when you log in (or the environment variable INPUTRC
has been set).

So if you put set disable-completion on into ~/.inputrc, 
and log in again, completion should be disabled.
You’ll also have disabled the rest of the settings in /etc/inputrc: you
might like to either copy them across, or try putting
$include  /etc/inputrc
into ~/.inputrc .