#!/bin/sh t1="p q r s t u v w x y z P Q R S T" t2a="0 1 2 3 4 5 6 7 8 9 a b c d e f" t2b="g h i j k l m n o p q r s t u v w x y z A B C D E F G H I J K L M N O P Q R S T U V W X Y Z" mkpty() { echo "tty$1$2 none network" } cat "$@" cat << _EOF # # Pseudo-ttys # _EOF for x in a b do eval w=\$t2$x for i in $t1 do for j in $w do mkpty $i $j done done done