How to add an extension to all files via terminal

Question

I would like to add the .zip extension to all files. I tried this, however it does not work:

ls | awk '{print $1 " " $1".zip"}' | xargs mv -f

Answer 1

Searching - few links:

1. http://stackoverflow.com/questions/1108527/recursively-add-file-extension-to-all-files

2. http://stackoverflow.com/questions/6114004/add-file-extension-to-files-with-bash

   man rename:

   NAME rename - renames multiple files

   SYNOPSIS rename [ -v ] [ -n ] [ -f ] perlexpr [ files ]

   DESCRIPTION "rename" renames the filenames supplied according to the rule specified as the first argument. The perlexpr argument is a Perl expression which is expected to modify the $_ string in Perl for at least some of the filenames specified. If a given filename is not modified by the expression, it will not be renamed. If no filenames are given on the command line, filenames will be read via standard input...

man wiki: http://en.wikipedia.org/wiki/Man_page

Answer 2

for f in * ; do 
  mv "$f" "$f.zip"
done

Answer 3

rename 's/$/\.zip/' *

Don't use xargs for that!

Answer 4

This should do the trick:

mmv "./*" "./#1.zip"

(Although I have no idea why you would want to do this...)