Generate a list of hashcat masks from a wordlist

hashcat_maskgen.sh

#!/bin/bash

# hashcat mask generator
# by @singe

infile="$1"
outfile="$1.freq.masks"
outfile2="$1.length.masks"
tmp=$(mktemp)

cp $infile $outfile

sed -i .bak "s/[[:punct:]]/##SS##/g" $outfile # prevent the lowercase replace changing from ?s to ??l
sed -i .bak "s/[a-z]/?l/g" $outfile
sed -i .bak "s/##SS##/?s/g" $outfile # put the ?s back after the lowecase replace
sed -i .bak "s/[A-Z]/?u/g" $outfile
sed -i .bak "s/[0-9]/?d/g" $outfile
rm $outfile.bak

# Reduce masks to uniques sorted by frequency (i.e. most common at the top)
sort $outfile | uniq -c | sort -rn | sed "s/^[\ 0-9]* //" > $tmp
mv $tmp $outfile

# Reduce masks to uniques sorted by length (i.e. shortest/fastest at the top)
cat $outfile | awk '{ print length, $0 }' | sort -ns | cut -d" " -f2- > $outfile2