LDP/LDP/guide/docbook/abs-guide/agram.sh

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#!/bin/bash
# agram.sh: Playing games with anagrams.
# Find anagrams of...
LETTERSET=etaoinshrdlu
FILTER='.......' # How many letters minimum?
# 1234567
anagram "$LETTERSET" | # Find all anagrams of the letterset...
grep "$FILTER" | # With at least 7 letters,
grep '^is' | # starting with 'is'
grep -v 's$' | # no plurals
grep -v 'ed$' # no past tense verbs
# Possible to add many combinations of conditions and filters.
# Uses "anagram" utility
#+ that is part of the author's "yawl" word list package.
# http://ibiblio.org/pub/Linux/libs/yawl-0.3.2.tar.gz
# http://bash.deta.in/yawl-0.3.2.tar.gz
exit 0 # End of code.
bash$ sh agram.sh
islander
isolate
isolead
isotheral
# Exercises:
# ---------
# Modify this script to take the LETTERSET as a command-line parameter.
# Parameterize the filters in lines 11 - 13 (as with $FILTER),
#+ so that they can be specified by passing arguments to a function.
# For a slightly different approach to anagramming,
#+ see the agram2.sh script.