摘要：
ps -aux VS ps aux ps -aux VS ps aux Note that "ps -aux" is distinct from "ps aux". The POSIX
and UNIX standards require that "ps -aux" print all
processes owned by a user named "x"... 阅读全文
摘要：
一.shell中quotes的类型 1.backslash \ 2. single quotes' ' 3.double quotes " " 4. back quotes ` `*The back quote isnotused for quoting characters. That character is used for command substitution, where the characters between them are executed by the shell and the results is inserted on th 阅读全文