代码语言:javascript复制
命令使用过程中,输出中总是会带两个符号: 和 -,如:
代码语言:javascript复制[1] 7893 Running gpass &
[2] 7904 Running gnome-calculator &
[3]- 7955 Running gedit fetch-stock-prices.py &
[4] 7958 Stopped ping cyberciti.biz
代码语言:javascript复制它们的含义如下:
%Number : Use the job number such as %1 or %2.
%String : Use the string whose name begins
with suspended command such as %commandNameHere or
%ping.
% OR %% : Refers to the current job.
%- : Refers to the previous job.
具体可参见:https://www.geeksforgeeks.org/process-control-commands-unixlinux/