i just need something like

touch /tmp/doing\_switching; 
nixos-rebuild switch; 
sleep 5; 
if \[ ! -f /tmp/done\_switching \]; then nixos-rebuild switch --rollback; 

i just need something like

nixos-rebuild switch; 
sleep 5; 
if [ ! -f /tmp/done\_switching ]; then nixos-rebuild switch --rollback; 

i just need something like

nixos-rebuild switch; 
sleep 5; 
if [ ! -f /tmp/done\_switching ]; then nixos-rebuild switch --rollback;  fi;