Bash script hangs while waiting for background processes to complete
I've spent hours debugging this and I'm maintaining legacy code that I'm deploying to production and I've searched everywhere and can't find a clear answer. I'm working with an scenario with a bash script where it seems to hang indefinitely when waiting for background processes to complete. I have a script that launches multiple tasks in the background and then uses `wait` to synchronize their completion. However, it doesn't return to the command line and just appears to be exploring, despite the background tasks completing successfully. Here's a snippet of my script: ```bash #!/bin/bash task1() { sleep 5 echo "Task 1 complete" } task2() { sleep 3 echo "Task 2 complete" } task3() { sleep 4 echo "Task 3 complete" } # Start tasks in the background task1 & task2 & task3 & wait # This line should execute after all tasks are complete echo "All tasks are done!" ``` When I run this script, it prints out the completion messages from the background tasks, but it never reaches the final `echo`. I've tried adding `set -x` to debug and see what's happening, but the output doesn't show anything unusual—it just sits there after the `wait` command. I've also checked the process list with `jobs` and `ps` commands, and it seems like all tasks are finished, yet it still waits. Is there something about the way I'm handling background processes that could cause this behavior? I'm running this script on Bash version 5.0.17 on Ubuntu 20.04. Any insights would be greatly appreciated! What am I doing wrong? I've been using Bash for about a year now. Is there a simpler solution I'm overlooking? I'd be grateful for any help.