README.md

genpasswd

mkdir -p ~/.local/bin
wget -O ~/.local/bin/genpasswd https://gist.githubusercontent.com/5HT2/30f98284e9f92e1b47b4df6e05a063fc/raw/9b5479444845c9866a227a0bdef31dc116a546df/genpasswd.sh
chmod +x ~/.local/bin/genpasswd

# Please make sure that ~/.local/bin is in your $PATH
echo "$PATH" | tr ':' '\n'

# If not, add the following to your shell's config, e.g. ~/.bashrc / ~/.zshrc
export PATH="$HOME/.local/bin:$PATH"

genpasswd.sh

#!/bin/bash

# Usage:
# genpasswd
# genpasswd 10 yes
# genpasswd yes
# genpasswd 48 yes

regex="a-zA-Z0-9"
numberRegex="^[0-9]+$"

if [[ "$1" =~ $numberRegex ]]; then 
  l="$1"
elif [[ "$2" =~ $numberRegex ]]; then
  l="$2"
else
  l="32"
fi

if [[ "$1" == yes ]] || [[ "$2" == yes ]]; then
  regex="${regex}!@#$%^&;:"
fi

# Fix for macOS "tr: Illegal byte sequence"
export LC_ALL=C
cat /dev/urandom | tr -dc "$regex" | fold -w "$l" | head -n 1