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Document exit codes

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John Kerl 2021-12-22 18:37:24 -05:00
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docs/src/reference-main-overview.md
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@ -103,3 +103,13 @@ a=wye,x_sum=0.777891
* They take more keystrokes
* There's more to learn
* They're highly customizable
## Exit codes
When you do `echo $?` immediately after running a Miller command (or any shell command), that's the _exit code_.
Miller's are as follows:
* 0 for normal exit.
* 1 if an error was encountered. There should be helpful text written to `stderr`; please [file a bug report](https://github.com/johnkerl/miller/issues/new), ideally with a reproducible scenario, if the text is either missing or unhelpful.
* 2 if there was a `panic` in the Go runtime -- you'll see lots of stack-trace lines. Please [file a bug report](https://github.com/johnkerl/miller/issues/new), ideally with a reproducible scenario, if you ever see this.