Path: utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!mayoff
From: mayoff@cs.utexas.edu (Robert Mayoff)
Newsgroups: comp.editors
Subject: Re: Change cases in VI
Message-ID: <1023@cash.cs.utexas.edu>
Date: 11 Dec 90 20:39:50 GMT
References: <1990Dec11.005842.13795@pa.dec.com>
Distribution: na
Organization: Dept of Computer Sciences, UTexas, Austin
Lines: 26

In article <1990Dec11.005842.13795@pa.dec.com> reader@wsl.dec.com (News Reader) writes:
>Is there an easy way to change the whole file from upper case to lower case or
>vice versa?

Yes.  The editor-only way to do it is to use this substitution command:

  :%s/.*/\L&/

but I prefer the (IMHO) less-cryptic, easier-to-remember, although slightly
slower, solution:

  :%!tr A-Z a-z

which uses the tr (translate) command to turn uppercase into lowercase.  The
reverse transformation can be accomplished with

  :%s/.*/\U&/

or

  :%!tr a-z A-Z

-- 
/_  rob		<mayoff@cs.utexas.edu>
 /_ Fun things to do with UNIX (#2 in a series):
  / echo "rsh `hostname` -n source eat.cpu &" > eat.cpu; source eat.cpu