ps --sort排序功能

ps aux --sort +rss/rss根据内存正序排

ps aux --sort -rss 逆序

ps aux --sort -pid/pid

ps aux --sort %cpu/-%cpu 根据cpu排序

关于ps命令显示不全的解决方法：ps aux |  more ;  ps auxww 后面的w要写两遍

man ps看下帮助信息：

 -w      Use 132 columns to display information, instead of the default which is your window size.  If the -w option is specified more than once, ps will use as many columns as
             necessary without regard for your window size.  When output is not to a terminal, an unlimited number of columns are always used.