simple question about mv

[Leslie Mikesell]

In article <940 at philmds.UUCP> leo at philmds.UUCP (Leo de Wit) writes:
>|for i in *.flip
>|do
>|mv $i `sed -e 's/flip$/flop'`
>|done
>
>You probably meant here:
>
>mv $i `echo $i|sed -e 's/flip$/flop/'`
>
>As it stands, the sed command has no input (well, not what you expect
>it to have), and the sed expression contains a syntax error.

Oops, I even tested that and then mistyped it.  What I actually would
have done myself (assuming that it doesn't need to be done often enough
to be worth writing a shell script) is:
vi
:r !ls *.flip
:%s/.*/& &/ 
:%s/flip$/flop/
:%s/^/mv /
:w !sh
:q!

This lets me check my notoriously poor typing before anything actually
happens and each step can be undone with the <u> command if it doesn't
look right.  Now, how many people have a vi manual that documents the
difference between :w! file and :w !command ?

Les Mikesell