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\section and and - Conditionally execute a command
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\subsection and-synopsis Synopsis
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<tt>COMMAND1; and COMMAND2</tt>
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\subsection and-description Description
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The \c and builtin is used to execute a command if the current exit
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status (as set by the last previous command) is zero
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The and command does not change the current exit status.
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\subsection and-example Example
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The following code runs the \c make command to build a program, if the
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build succceds, the program is installed. If either step fails,
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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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<pre>
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make; and make install; or make clean
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</pre>
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