If I run
cp file1 file2
I'd like to be able to track it's progress. Is there a command I can use for this?
has this, but is there something generic, usable for "any" command?
(Perhaps not quite what you're asking since it won't work for any command, but) to get a progress meter for cp, I sometimes (ab)use scp:
You will need the "localhost:" prefix on either the source or destination so scp won't fall back to a standard cp.
You can use
See e.g. http://www.catonmat.net/blog/unix-utilities-pipe-viewer/ for explanations. This will not work for cp however, as it does not operate via pipes.
Beyond that, there's no general mechanism I am aware of. It would be difficult, since "progress" can mean different things to different commands.
Though it might not directly answer your question: You can also just use a graphical file manager. Most provide a nice progress bar when copying / moving files (e.g. KDE's konqueror does).