-- Larry
--
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Larry James                                                lja...@apollo3.com
Apollo III Communications                           72667.3...@compuserve.com
Computer Consultant/Programmer                    716-685-1865-ext 550  Voice

The best solution to this very FAQ is to get the freeware util mmv,
which handles this as well as most other "I can do it in DOS, why can't
I do it in Unix?" type renaming questions.

************************************************************************
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the length of .signature files
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a way to have as many lines as

        - p...@quads.uchicago.edu, who is still costing the net
          hundreds, if not thousands, of dollars, every time he posts -
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rwvpf wpnrrj ibf ijrfer

Here's a script I use to do this.

#!/bin/csh -f
##################################################################
# Convert specified filenames (not contents) to lowercase.
#
# 02MAR92 Tom Parker, SCD Consulting Office.
##################################################################

# Initialize
    set cmd = `basename $0`
    if ($#argv == 0) then
       echo "Usage: $cmd <file(s)>    # Converts filenames to lowercase"
       exit 1
    endif
    @ n = 0

# Lowercase and rename each specified file.
    foreach orig($*)
       set new = `echo $orig | tr '[A-Z]' '[a-z]'`
       if ($new == $orig) then
          # Already lowercase, so nothing to do.
       else if (-e $new) then
          echo "${cmd}: Can't rename $orig because $new already exists."
       else
          mv $orig $new
          if ($status == 0) then
            echo "${cmd}: Renamed $orig to $new"
            @ n++
          endif
       endif
    end

# Feedback
    echo " "
    echo "$n filenames were converted to lowercase."
    exit

--
+--------------------------------------------------------------------+
| Tom Parker             |  National Center for Atmospheric Research |
| tpar...@ncar.ucar.edu  |  (303) 497-1227                           |
+--------------------------------------------------------------------+

:     Can someone suggest to me a few lines of shell script that will
:convert filenames in a directory from upper case to lower case.
:     Thanks in advance for any comments or suggestions.
:
This appears so frequently it out to be in the FAQ :-).

A perl solution could be:

#!/usr/local/bin/perl

for $oldname (@ARGV) {
        ($newname = $oldname) =~ tr/A-Z/a-z/;
        next if $newname eq $oldname;   # no change necessary
        if (stat($newname)) {                   # check for duplicate
                printf STDERR "Duplicate %s\n", $newname;
                next;
        }
        rename($oldname, $newname);
exit(0);
__END__

There are lots of other ways to accomplish this, but this is
probably one of the faster methods.

Bill
--
INTERNET:  b...@Celestial.COM   Bill Campbell; Celestial Software
UUCP:   ...!thebes!camco!bill   8545 SE 68th Street
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SPEED COSTS MONEY -- HOW FAST DO YOU WANT TO GO?

Gee, you're stubborn. I already told you that Bob Stockler posted a
terrific set of solutions to that very question a few days ago in
CompuServe's SCOForum, and here you are asking all over again.

1) use tr
2) use awk
3) use ksh

As a recent user of Unix, have you ever so much as browsed through the man
pages?  Have you worked through the examples in any one of a dozen
reasonably good Unix primers that now exist, starting with K&P?
--
Jean-Pierre Radley   j...@jpr.com     XC custodian    Sysop, CompuServe SCOForum

Let's see, something like this should work:

#!/bin/sh

for filename in *
do
        newname=`echo $filename | tr 'A-Z' 'a-z'`
        if [ ! -f $newname ]
        then
                mv $filename $newname
        else
                echo $newname already exists
        fi
done
#end of script

t.

Suppose filenames are:

  Changes  Install  AUTOEXEC.BAT  CONFIG.SYS  MAIN.C  COPY.C

and the user types 'campbell *' where campbell is the name of the above
script.  What conversion do you think he wants?  What do you think he
gets?
--
Rahul Dhesi <dh...@rahul.net>
also:  dh...@cirrus.com

#! /bin/sh
ls | while read i
do
  mv $i `echo $i | tr '[A-Z]' '[a-z]'`
done
--
Max Heffler, Senior Systems Engineer         office: m...@sysdev.com
System Development, Inc.                     home: m...@texsys.com
10500 Westoffice #100                        phone: (713) 266-5667
Houston, Texas  77042                        fax:   (713) 974-4911