https://www.cnblogs.com/xudong-bupt/p/3721210.html ps -ef | awk ‘NR==1{print $1,$2,$8} /java|mysql/{print $1, $2, $8}‘ # UID PID CMD # mysql 34948 /usr/sbin/mysqld # int4 294323 awk
grep保留标题的方法
原文：https://www.cnblogs.com/amize/p/14982124.html
