过程

查看过程 ps(相似windows义务管理器)

man 1 ps # 查看命令文档
ps[options]

1   UNIX options, which may be grouped and must be
           preceded by a dash.
2   BSD options, which may be grouped and must not be used
           with a dash.
3   GNU long options, which are preceded by two dashesman 1 ps # 查看命令文档
ps[