mirror of https://github.com/tLDP/LDP
41 lines
1.1 KiB
Bash
41 lines
1.1 KiB
Bash
#!/bin/bash4
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test_char ()
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{
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case "$1" in
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[[:print:]] ) echo "$1 is a printable character.";;& # |
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# The ;;& terminator continues to the next pattern test. |
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[[:alnum:]] ) echo "$1 is an alpha/numeric character.";;& # v
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[[:alpha:]] ) echo "$1 is an alphabetic character.";;& # v
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[[:lower:]] ) echo "$1 is a lowercase alphabetic character.";;&
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[[:digit:]] ) echo "$1 is an numeric character.";& # |
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# The ;& terminator executes the next statement ... # |
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%%%@@@@@ ) echo "********************************";; # v
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# ^^^^^^^^ ... even with a dummy pattern.
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esac
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}
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echo
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test_char 3
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# 3 is a printable character.
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# 3 is an alpha/numeric character.
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# 3 is an numeric character.
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# ********************************
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echo
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test_char m
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# m is a printable character.
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# m is an alpha/numeric character.
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# m is an alphabetic character.
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# m is a lowercase alphabetic character.
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echo
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test_char /
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# / is a printable character.
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echo
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# The ;;& terminator can save complex if/then conditions.
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# The ;& is somewhat less useful.
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