什么做后缀＆QUOT; + QUOT;和＆QUOT; - ＆QUOT;后台作业的作业标识后，是什么意思？ [英] What do the suffixes "+" and "-" after the job id of background jobs mean?

问题描述

当我运行多个后台进程我的命令工作的输出，例如：

  [1]  - 在运行的nohup somecommand1＆安培;
[2] + RUNNING的nohup somecommand2＆安培;
 

做什么的+和 - ？作业ID之后的字符意味着

解决方案

这是在人为页STDOUT下工作：

 ＆GT;男人工作
 

  

的字符+标识，将被用作FG或血糖公用事业默认作业;这项工作也可以使用JOB_ID％+或%%指定。字符' - '标识将成为默认值，如果当前的默认工作是退出工作;这项工作也可以使用JOB_ID％规定 -

所以作业标有+是将由FG被激活的那个。

When I run several background processes my output of the command jobs is for example:

[1]-  RUNNING                  nohup somecommand1 &
[2]+  RUNNING                  nohup somecommand2 &

What do the "+" and "-" chars after the job id mean?

解决方案

It's in the man-page for jobs under STDOUT:

> man jobs

The character '+' identifies the job that would be used as a default for the fg or bg utilities; this job can also be specified using the job_id %+ or "%%" . The character '-' identifies the job that would become the default if the current default job were to exit; this job can also be specified using the job_id %-.

So the job marked with '+' is the one that will be activated by 'fg'.

这篇关于什么做后缀＆QUOT; + QUOT;和＆QUOT; - ＆QUOT;后台作业的作业标识后，是什么意思？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！