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24 lines
985 B
Plaintext
24 lines
985 B
Plaintext
\section or or - conditionally execute a command
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\subsection or-synopsis Synopsis
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\fish{synopsis}
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COMMAND1; or COMMAND2
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\endfish
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\subsection or-description Description
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`or` is used to execute a command if the current exit status (as set by the previous command) is not 0.
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`or` statements may be used as part of the condition in an <a href="#if">`and`</a> or <a href="#while">`while`</a> block. See the documentation
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for <a href="#if">`if`</a> and <a href="#while">`while`</a> for examples.
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`or` does not change the current exit status. The exit status of the last foreground command to exit can always be accessed using the <a href="index.html#variables-status">$status</a> variable.
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\subsection or-example Example
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The following code runs the `make` command to build a program. If the build succeeds, the program is installed. If either step fails, `make clean` is run, which removes the files created by the build process.
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\fish
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make; and make install; or make clean
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\endfish
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