todebug2

来自「UNIX+shell范例精解（第4版）代码」· 代码 · 共 10 行

#!/bin/ksh
# Scriptname: todebug2
trap 'print "num=$num on line $LINENO"' DEBUG
num=1
while (( num < 5 ))
do
	(( num=num+1 ))
done
print The grand total is $num