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23 lines
740 B
Text
23 lines
740 B
Text
\section while while - perform a command multiple times
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\subsection while-synopsis Synopsis
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\fish{synopsis}
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while CONDITION; COMMANDS...; end
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\endfish
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\subsection while-description Description
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`while` repeatedly executes `CONDITION`, and if the exit status
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is 0, then executes `COMMANDS`.
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If the exit status of `CONDITION` is non-zero on the first iteration,
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`COMMANDS` will not be executed at all.
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Use <a href="#begin">`begin; ...; end`</a> for complex conditions; more
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complex control can be achieved with `while true` containing a
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<a href="#break">break</a>.
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\subsection while-example Example
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`while test -f foo.txt; echo file exists; sleep 10; end`
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outputs 'file exists' at 10 second intervals as long as
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the file foo.txt exists.
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