[drusepth]

Linux noob here: what's the fold for? How is that secret different from doing something like

tr -dc A-Za-z0-9_ < /dev/urandom | head -c 32

?

[koolba]

The difference is that fold will add a trailing newline. Another option is to add an '; echo' at the end of the operation.

And yes the "cat" is not necessary.