2006-10-31 15:23:16 +00:00
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\section or or - conditionally execute a command
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2005-09-20 13:31:55 +00:00
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\subsection or-synopsis Synopsis
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2006-01-05 15:37:53 +00:00
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<tt>COMMAND1; or COMMAND2</tt>
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\subsection or-description Description
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2006-09-19 14:52:03 +00:00
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The \c or builtin is used to execute a command if the current exit
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status (as set by the last previous command) is not 0.
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2006-06-03 23:15:17 +00:00
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The or command does not change the current exit status.
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2006-11-02 13:47:25 +00:00
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The exit status of the last foreground command to exit can always be
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accessed using the <a href="index.html#variables-status">$status</a>
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variable.
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2005-09-20 13:31:55 +00:00
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\subsection or-example Example
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2006-06-03 23:15:17 +00:00
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The following code runs the \c make command to build a program, if the
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2007-08-01 17:35:24 +00:00
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build succceeds, the program is installed. If either step fails,
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2006-06-03 23:15:17 +00:00
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<tt>make clean</tt> is run, which removes the files created by the
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build process
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2005-09-20 13:31:55 +00:00
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<pre>
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2006-06-03 23:15:17 +00:00
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make; and make install; or make clean
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2005-09-20 13:31:55 +00:00
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</pre>
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