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#!/bin/sh
#
# This is a script to (re-)generate the .chr files using passwords in john.pot
# and applying all of the defined external mode filters. To speed it up on a
# sufficiently large computer (RAM and CPUs), "&" may be added after the John
# invocation (to run all of them in parallel).
#
# Copyright (c) 2013 by Solar Designer
# Redistribution and use in source and binary forms, with or without
# modification, are permitted.
# There's ABSOLUTELY NO WARRANTY, express or implied.
# (This is a heavily cut-down "BSD license".)
#
# Look for John in the same directory with this script
DIR="`echo "$0" | sed 's,/[^/]*$,,'`"
sed -n 's/^\[List.External:Filter_\([A-Za-z_]\+\)\]$/\1/p' < john.conf |
while read CHR; do
CHR_LOWER="`echo -n $CHR | tr A-Z a-z`"
$DIR/john --make-charset=${CHR_LOWER}.chr --external=Filter_${CHR}
done
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