Using Trap to Exit Bash Shell Scripts Cleanly - Linux Tutorial

Published: 06 February 2020
on channel: Putorius Linux Tutorials

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In this Bash tutorial we will show you how to use trap to exit a script cleanly. It can be used to clean up temporary files, ensure service availability after a script exits, ensure ports are secured and much more.

A text version of this tutorial can be found here:
https://www.putorius.net/using-trap-t...

0:00 Introduction to Bash Exit Trap
0:49 What is trap?
1:31 The wrong way to clean up on script exit
2:05 How to use trap on exit to clean up temporary files
2:53 Using traps to ensure service availability
3:31 Ensure ports are closed after script exit
4:02 Using a function in a trap call
4:20 Conclusion

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