In Linux/bash how can I prevent asynchronous commands?

Jason M

2/14/23, 9:00 AM

I have a makefile that calls external build scripts.

Some of these scripts (which I can't change) make use of commands that are forked / backgrounded (or asynchronous as the bash manual names them)

That means that the next line in the makefile can start before some of the previous command finishes - creating a race condition.

I somehow need to either wait on the forked process and all it's children, or simply prevent any command or subcommand of subsequent scripts running in the background.

Is there a way to prevent this, i.e. disable the ampersand '&' suffix to commands in the current and child subshells?

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bash

process

background

fork

Score:0

Server

Romeo Ninov

2/14/23, 9:38 AM

One possible way is to create a copy of these scripts and remove the constructions with make some command to run in background. Be warned you may do not want to remove all & automatically because you may mess commands like:

command && command

The other possible way is to ask for permission to edit the scripts (instead of copy them)

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Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: In Linux/bash how can I prevent asynchronous commands?

TH: ใน Linux/bash ฉันจะป้องกันคำสั่งอะซิงโครนัสได้อย่างไร

RO: În Linux/bash, cum pot preveni comenzile asincrone?

RU: Как в Linux/bash предотвратить асинхронные команды?

VI: Trong Linux/bash, làm cách nào tôi có thể ngăn các lệnh không đồng bộ?

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