signal1.right

busybox 1.10.1源码下载 一个集成了一百多个最常用linux命令和工具的软件,他甚至还集成了一个http服务器和一个telnet服务器

got signal
trap -- 'echo got signal' USR1
sent 1 signal
got signal
sleep interrupted
trap -- 'echo got signal' USR1
sent 2 signal
got signal
sleep interrupted
trap -- 'echo got signal' USR1
sent 3 signal
got signal
sleep interrupted
trap -- 'echo got signal' USR1
sent 4 signal
got signal
sleep interrupted
trap -- 'echo got signal' USR1
sent 5 signal
sleep completed