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39 lines
1011 B
Markdown
39 lines
1011 B
Markdown
# The until loop
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## Synopsis
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until <LIST1> ; do
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<LIST2>
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done
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## Description
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The until-loop is relatively simple in what it does: it executes the
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[command list](../../syntax/basicgrammar.md#lists) `<LIST1>` and if the exit
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code of it was **not** 0 (FALSE) it executes `<LIST2>`. This happens
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again and again until `<LIST1>` returns TRUE.
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This is exactly the opposite of the [while
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loop](../../syntax/ccmd/while_loop.md).
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:!: Like all loops (both `for`-loops, `while` and `until`), this loop
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can be
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- terminated (broken) by the `break` command, optionally as `break N`
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to break `N` levels of nested loops
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- forced to immediately do the next iteration using the `continue`
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command, optionally as `continue N` analog to `break N`
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### Return status
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The return status is the one of the last command executed in `<LIST2>`,
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or `0` (`TRUE`) if none was executed.
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## Examples
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## Portability considerations
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## See also
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- Internal: [The while loop](../../syntax/ccmd/while_loop.md)
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