[quotemstr]

> I often wish there was a convenient way of doing such an operation in the shell: if path start with "/", leave it, otherwise prepend "./"

Both bash and zsh have enough functionality exposed via shell functions and variables for you to define a keybinding that does exactly this, interactively. Good idea.

Did you mean an interactive command? Or something else?

[PhilipRoman]

I meant non-interactive, for use in scripts which take user input. We already have "--" for end of options, but the support for it is not universal and even with that some programs will interpret certain strings in a special way. On the other hand, prepending the dot-slash should work for any program or argument passing style.