test.sh:
#!/bin/sh while [ 1 ] do date # 当前时间 sleep 1s # 阻塞进程,延时1秒 done
输出:
[root@localhost shell]# ./test.sh Wed Apr 6 05:21:16 CST 2016 Wed Apr 6 05:21:17 CST 2016 Wed Apr 6 05:21:18 CST 2016 ^C [root@localhost shell]#
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