0 Not to wait for a certain command to end execution; 1 bash wait for open to finish 0 Waiting for a process to end 0 Close the foreground process when a background process finishes 1 Wait for a proccess to finish 6 Wait for subshell process to complete 13 wait one process ...
If you have asked such question: does bash wait for a command to finish, you can find the answer here. In this article you will also find out how the WAIT command can help.
加了&后,在后台执行command1命令,可以继续执行下一个命令。 类似的,command2 &也是在后台执行command2命令。 即,通过&在后台并发执行command1、command2命令,可以更好地利用 CPU 并发能力,加快执行速度。 如果先等待command1执行完成,再来执行command2命令,可能会比较慢。 之后执行wait命令,没有提供任何参数,会等待...
你不能。你的计算机越来越少地被利用，直到所有的后台作业完成，这时你可以开始一批新的作业。
If a command is terminated by the control operator &, the shell executes the command in the background in a sub shell. The shell does not wait for the command to finish, and the return status is 0. Commands separated by a ; are executed sequentially; the shell waits for each ...
( /path/to/slow command with options ) & sleep 5 ; kill $! But it's possible that a given "long-running" command may finish earlier than the timeout. (Let's call it a "typically-long-running-but-sometimes-fast" command, or tlrbsf for fun.) So this nifty ...
How to wait in bash for several subprocesses to finish and return exit code !=0 when any subprocess ends with code !=0? 如何在bash脚本中等待该脚本生成的几个子进程完成并返回退出代码!=0,当任何子进程以代码结束时!= 0? 简单脚本: 1
The shell does not wait for the command to finish, and the return status is 0. Commands separated by a ; are executed sequentially; the shell waits for each command to terminate in turn. The return status is the exit status of the last command executed. AND and OR lists are sequences ...
the background in a subshell. The shell does not wait for the command to finish, and the return status is 0. Commands separated by a ; are executed sequentially; the shell waits for each command to terminate in turn. The return status is the exit status of the last ...
1.使用&在后台运行salt 1.保存其PID 1.在未来的某个时候，wait 1.获取wait的退出状态 ...