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  • Committer: Package Import Robot
  • Author(s): Sandro Tosi
  • Date: 2012-06-03 10:57:27 UTC
  • mfrom: (1.2.6)
  • Revision ID: package-import@ubuntu.com-20120603105727-rm7frl4feikr2swm
Tags: 6.5-1
* New upstream release
* debian/watch
  - updated
* debian/abs-guide.lintian-overrides
  - updated for new upstream code
* debian/control
  - bump Standards-Version to 3.9.3 (no changes needed)

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abs/patt-matching.sh
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#!/bin/bash
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# patt-matching.sh
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# Pattern matching  using the # ## % %% parameter substitution operators.
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var1=abcd12345abc6789
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pattern1=a*c  # * (wild card) matches everything between a - c.
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echo
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echo "var1 = $var1"           # abcd12345abc6789
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echo "var1 = ${var1}"         # abcd12345abc6789
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                              # (alternate form)
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echo "Number of characters in ${var1} = ${#var1}"
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echo
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echo "pattern1 = $pattern1"   # a*c  (everything between 'a' and 'c')
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echo "--------------"
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echo '${var1#$pattern1}  =' "${var1#$pattern1}"    #         d12345abc6789
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# Shortest possible match, strips out first 3 characters  abcd12345abc6789
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#                                     ^^^^^               |-|
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echo '${var1##$pattern1} =' "${var1##$pattern1}"   #                  6789      
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# Longest possible match, strips out first 12 characters  abcd12345abc6789
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#                                    ^^^^^                |----------|
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echo; echo; echo
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pattern2=b*9            # everything between 'b' and '9'
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echo "var1 = $var1"     # Still  abcd12345abc6789
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echo
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echo "pattern2 = $pattern2"
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echo "--------------"
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echo '${var1%pattern2}  =' "${var1%$pattern2}"     #     abcd12345a
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# Shortest possible match, strips out last 6 characters  abcd12345abc6789
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#                                     ^^^^                         |----|
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echo '${var1%%pattern2} =' "${var1%%$pattern2}"    #     a
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# Longest possible match, strips out last 12 characters  abcd12345abc6789
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#                                    ^^^^                 |-------------|
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# Remember, # and ## work from the left end (beginning) of string,
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#           % and %% work from the right end.
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echo
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exit 0