An aggressively simple bash script for generating passwords. It's basically standalone - put it where you like, but preferably somewhere in your `$PATH`.

Dependencies:

 * A words list, usually `words` or `wordslist` depending on your package ecosystem.
 * grep
 * shuf
 * sed
 * tr

A typical desktop Linux install will contain most or all of those out of the box.

```bash
passgen ww  # Generate two random words
passgen nn  # Generate two random numeric digits
passgen lll # Generate three lowercase letters
passgen LL  # Generate two uppercase letters
passgen s   # Generate one symbol
passgen aa  # Generate two random things from any of those categories

passgen # Use the default format string: "wwLnnnnssa"
# (this default can be changed with $PASSGEN_FMT_DEFAULT env var)
```