shell在for循环里面没问题 放到函数里面就变成死循环了

#!/bin/sh
[ -f /etc/init.d/functions ]&& . /etc/init.d/functions||exit 1
function ping(){
for i in {180..190}
do
ip=192.168.21.${i}
ping -c 1 -w 1 $ip &>/dev/null
RETVAL=$?
if [ $RETVAL -eq 0 ];then
action "a" /bin/true
else
action "a" /bin/false
fi
sleep 2
done
}
main(){
ping
}
main

+++ SETCOLOR_NORMAL='echo -en \033[0;39m'
++ '[' pty = serial ']'
++ __sed_discard_ignored_files='/(~|.bak|.orig|.rpmnew|.rpmorig|.rpmsave)$/d'
++ '[' '' = 1 ']'

• main
• ping
• for i in '{180..190}'
• ip=192.168.21.180
• ping -c 1 -w 1 192.168.21.180 没办法执行或死循环21.180

函数名和命令名字冲突