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add exit trap trick (#45)

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Ryan Barth 2017-04-16 01:02:21 -07:00 committed by Adnan Ahmed
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README.md
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@ -1095,6 +1095,18 @@ source ~/.bashrc
cd $hotellogs cd $hotellogs
``` ```
## Exit traps
Make your bash scripts more robust by reliably performing cleanup.
```bash
function finish {
# your cleanup here. e.g. kill any forked processes
jobs -p | xargs kill
}
trap finish EXIT
```
# 4. Debugging # 4. Debugging
You can easily debug the bash script by passing different options to `bash` command. For example `-n` will not run commands and check for syntax errors only. `-v` echo commands before running them. `-x` echo commands after command-line processing. You can easily debug the bash script by passing different options to `bash` command. For example `-n` will not run commands and check for syntax errors only. `-v` echo commands before running them. `-x` echo commands after command-line processing.