How To Restrict Linux Console For single program

with .bashrc we can do that

Modify the .bashrc in users home folder
# .bashrc
# User specific aliases and functions
alias rm='rm -i'
alias cp='cp -i'
alias mv='mv -i'

# Source global definitions
if [ -f /etc/bashrc ]; then
clear
if [ -f /tmp/chetu ]; then
. /etc/bashrc
exec /usr/bin/MY_program.sh
else
touch /tmp/chetu
fi
fi

Last do : source ~/.bashrc


All done :)