Cheap attempt to generate a random password and its crypt-pw using mostly bash.

mkcrypt.sh

#! /bin/bash -e
#
# Cheap attempt to generate a random password and its crypt-pw using mostly bash.
#

SALT="./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"

mkapass() {
    local len=${1-8}
    while [ ${n:=1} -le $len ]
    do  let n+=1
        pass="$pass${SALT:$[RANDOM%${#SALT}]:1}"
    done
    echo "$pass"
    unset pass n
}

salt="${SALT:$[RANDOM%${#SALT}]:1}${SALT:$[RANDOM%${#SALT}]:1}"
pass=$(mkapass 11)
crypt=$(python -c "import crypt; print crypt.crypt('$pass','$salt')") #"

echo "password: $pass"
echo "crypt-pw: $crypt"