j

$ cat untill

secretname=j enny

name=noname

echo "   !"

echo

until [ "$name" = "$secretname" ]

do

echo -n " : "

read name
done
echo " ."

$ untill

   !

 : belen
 : barbara
 : rachael
 : jenny
 .

  locktty    lock  Berkeley UNIX   
 Lock Screen  GNOME.      () 
   until  "" .  until
       ,  
     ,     . 
iocktty         ,  
   .      ,  
,       :

$ cat locktty

#! /bin/bash

# UNIX/WORLD, 111:4

trap " 1 2 3 18
stty -echo
echo -n ": "
read key_l
echo

echo -n " : "
read key_2
echo
key_3=

if [ "$key_l" = "$key_2" ]
then

tput clear

until [ "$key_3" = "$key_2" ]

do

read key_3

done
else

echo "locktty:   " 1>&2
fi
stty echo

886                                                  VI. 