trapping

UNIX[1].shell范例精解(第4版)_code

#/bin/sh
# Scriptname: trapping
# Script to illustrate the trap command and signals 
trap 'echo "Control-C will not terminate $0."' 2
trap 'echo "Control-\ will not terminate $0."' 3

echo "Enter any string after the prompt."
echo "When you are ready to exit, type \"stop\"."
while true
do
	echo  -n "Go ahead...> "
	read reply
	if [ "$reply" = stop ]
	then 
	     break
	fi
done