24 lines
1.2 KiB
Plaintext
24 lines
1.2 KiB
Plaintext
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# Open Group Base Specifications Issue 7:
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# """
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# If an unknown option is met, VAR shall be set to "?". In this case,
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# if the first character in optstring is ":", OPTARG shall be set
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# to the option character found, but no output shall be written
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# to standard error; otherwise, the shell variable OPTARG shall be
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# unset and a diagnostic message shall be written to standard error."
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# ...
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# If an option-argument is missing:
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# If the first character of optstring is ":", VAR shall be set to ":"
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# and OPTARG shall be set to the option character found.
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# """
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echo "*** optstring:':ac' args:-a -b -c"
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getopts ":ac" var -a -b -c; echo "1 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
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getopts ":ac" var -a -b -c; echo "2 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
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getopts ":ac" var -a -b -c; echo "3 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
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getopts ":ac" var -a -b -c; echo "4 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
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# Previous line should result in "rc:1", which is normally treated
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# in getopts loops as exit condition.
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# Nevertheless, let's verify that calling it yet another time doesn't do
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# anything weird:
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getopts ":ac" var -a -b -c; echo "5 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
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