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33 lines
749 B
ReStructuredText
33 lines
749 B
ReStructuredText
.. _cmd-eval:
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eval - evaluate the specified commands
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======================================
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Synopsis
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--------
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::
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eval [COMMANDS...]
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Description
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-----------
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``eval`` evaluates the specified parameters as a command. If more than one parameter is specified, all parameters will be joined using a space character as a separator.
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If your command does not need access to stdin, consider using :ref:`source <cmd-source>` instead.
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If no piping or other compound shell constructs are required, variable-expansion-as-command, as in ``set cmd ls -la; $cmd``, is also an option.
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Example
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-------
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The following code will call the ls command and truncate each filename to the first 12 characters.
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::
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set cmd ls \| cut -c 1-12
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eval $cmd
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