Very Computer

How can i do it in Unix Shell?

Thanks!

First, create a for loop that matches each of the files to be renamed. For
example:

    for VAR in r*.CPP ; do
        ... some commands go here
    done

Note that for each iteration of the loop, VAR contains a different file
name - successively taken from the set of files matching the pattern r*.CPP.

Now, inside the loop, define a new variable, NEWVAR, which is transformed
(using tr and/or sed) to reformat the filename as desired. Because you don't
want to translate the initial 'r', I created an intermediate variable
(TMPVAR) that holds only that portion of the filename we wish to modify. For
example:

    TMPVAR=`echo $VAR | sed 's/^r\(.*\)/\1/'
    NEWVAR=`echo $TMPVAR | tr 'a-z' 'A-Z'`

After these two commands (and still inside the loop) you can now rename the
files with the mv command. The old file name is in $VAR and the new file
name is in $NEWVAR For example,

    mv $VAR $NEWVAR

NOTE: Some of the above syntax only works in Bourne shell scripts, so make
sure it runs in Bourne shell (#!/bin/sh), not C shell.

HTH,
-Bob
 Andover, MA

Quote:> In PC DOS environment, this command can rename all files ,which begin with
> "r" and end with extension CPP in uppercase, into lowecase.(e.g.
> rMYFILE.CPP rmyfile.cpp)

> How can i do it in Unix Shell?

> Thanks!

Here's one way,
$ typeset -l J
$ for I in `ls r*.CPP`; do J=$I; mv $I $J; done