24 lines
1.2 KiB
Text
24 lines
1.2 KiB
Text
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Getopt(1) is a program to help shell scripts parse command-line
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parameters. It is for example included in the util-linux distribution
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(versions up to 2.7.1) for Linux. But, there were some problems
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with that getopt(1) implementation, as listed in the 'BUGS' section
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of its man-page:
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* Whatever getopt(3) has.
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* Arguments containing white space or imbedded shell metacharacters
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generally will not survive intact; this looks easy to fix but
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isn't.
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* The error message for an invalid option is identified as
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coming from getopt rather than from the shell procedure
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containing the invocation of getopt; this again is hard to
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fix.
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* The precise best way to use the set command to set the
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arguments without disrupting the value(s) of shell options
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varies from one shell version to another.
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Additionally, the example in the manual-page does not run correctly
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(at least not with any bash shell I have tried).
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This implementation of getopt(1) solves some of these problems,
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while still staying (for all practical purposes) completely compatible
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with other getopt(1) implementations. It has replaced the old
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util-linux version, but it should be useful for other Unixes too.
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