摘要:
主要用到两个命令 -n -z if [ -n "$PID" ]; then echo "PID is not empty" fi if[ -z "$PID" ]; then echo "PID is empty" fi 阅读全文
posted @ 2016-05-23 17:48
yin.kh
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摘要:
主要用到两个命令 -n -z if [ -n "$PID" ]; then echo "PID is not empty" fi if[ -z "$PID" ]; then echo "PID is empty" fi 阅读全文
posted @ 2016-05-23 17:48
yin.kh
阅读(1272)
评论(0)
推荐(0)
|