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How to wait in a bash script for several subprocesses spawned from that script to finish, and then return exit code !=0 when any of the subprocesses ends with code !=0? Simple script: #!/bin/bash for i in `seq 0 9`; do calculations $i & done wait The ...
Here’s a comprehensive example of using the wait command in advanced bash scripting. The script below contains two processes, each having a unique pid. Now, the script is to run the processes in the background. The first command has a $process_id ($1). Also, the wait command is linke...
既然你在推doSqoop做背景工作&，唯一限制脚本执行时间的是sleep 0.5不管花多长时间checkqueue跑。你考虑...
1 Docker stop sleeping bash script 0 Understanding comand in run of docker Hot Network Questions How can life which cannot live on the surface of a planet naturally reach the supermajority of the planet's caves? Understanding the behavior of modulo operation while using TikZ Alignment of...
GNU bash,版本 5.0.3(1),基于 5.7.0-0.bpo.2-amd64 Linux 内核。预先取消设置a会使第二个脚本返回此值is 1 is 2 is 3 Run Code Online (Sandbox Code Playgroud) 即该变量从未设置,并且是从我之前的运行中拖出的。ilk*_*chu 5 for循环不在子shell中运行,例如您可以拥有for i in 1 2 3; ...
for i in 1 2 3 4 5 do iiecho “foo.sh – Looping … number $i” done exit 127 Script – bar.sh #!/bin/bash ./foo.sh & BPID=$! wait $BPID stat=$? if [ $stat –eq 0 ] then echo “Exit status - $stat” else
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Script – foo.sh Script – bar.sh Result 示例3–具有wait命令和返回状态的脚本 “ bar.sh”脚本将调用foo.sh并在后台运行它,获取foo.sh的PID并等待其完成,一旦完成,它将启动bar.sh循环,最后,返回 foo.sh脚本的退出代码。 Script – foo.sh (Exit status = 0) ...
Bash wait Command with Examples - Introduction The Bash shell is one of most widely used shells in Unix/Linux environment. One of its most useful commands is wait command. In this article, we will explore Bash wait command and its usage with examples. Wh