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Homework and Emergencies Homework & Coursework Questions Create file and then change the extension case. Post 302367329 by vbe on Monday 2nd of November 2009 09:07:00 AM
Old 11-02-2009
Greetings,
my 2 cents:
I have not much time to understand all you are trying here and I dont use bash...

So my remarks would be more like "If you were using /usr/bin/sh, ..."

1) The beginning:
Code:
#!/usr/bin/sh

#----------Dont know exactly but my code ---  # --- Isnt valid for comments...
touch  ./tmp/newfilename                             # So use <#>
umask 077 && mkdir ./tmp/tempdir.$$             # no ) at the end...
#exit 2                                                     # otherwise your program stops here!
#-----------------------------------------

usage () {
    echo
    echo "Usage: `basename $0` <search dir> <old ext> <new ext>"
    echo
}

if [ -z "$1" ]; then                             #  why $3? what about the other
    usage                                       #  expected arguments ?
    exit 1                                       #  at least now it will show up if you type
fi                                             # nothing more than the programs name...

OLDEXT=$2
NEWEXT=$3

echo  OLDEXT=$OLDEXT                         # when things dont work, display what you loaded
echo NEWEXT=$NEWEXT                         # in order to check you did initialize some VARs
                                              # and have an idea where you are in your code
                                              # at execution...

your main:
Code:
 NEWFILE="${F/%${OLDEXT}/${NEWEXT}}"

Since I dont use bash for me it will be difficult to say what is not working...
In sh though I doubt it can be done that way...

Why are you not using basic sh ( for compliance...)?

So now you have the beginning in working order
Explain me your choice for your while loop (If it should work in bash, Im no help...)
 

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AnyData::Format::Mp3(3pm)				User Contributed Perl Documentation				 AnyData::Format::Mp3(3pm)

NAME
AnyData::Format::Mp3 - tied hash and DBI access to Mp3 files SYNOPSIS
use AnyData; my $playlist = adTie( 'Passwd', ['c:/My Music/'] ); while (my $song = each %$playlist){ print $song->{artist} if $song->{genre} eq 'Reggae' } OR use DBI my $dbh = DBI->connect('dbi:AnyData:'); $dbh->func('playlist','Mp3,['c:/My Music'],'ad_catalog'); my $playlist = $dbh->selectall_arrayref( qq{ SELECT artist, title FROM playlist WHERE genre = 'Reggae' }); # ... other DBI/SQL operations DESCRIPTION
This module provides a tied hash interface and a DBI/SQL interface to MP files. It creates an in-memory database or hash from the Mp3 files themselves without actually creating a separate database file. This means that the database is automatically updated just by moving files in or out of the directories. Many mp3 (mpeg three) music files contain a header describing the song name, artist, and other information about the music. Simply choose 'Mp3' as the format and give a reference to an array of directories containing mp3 files. Each file in those directories will become a record containing the fields: song artist album year genre filename filesize This module is a submodule of the AnyData.pm and DBD::AnyData.pm modules. Refer to their documentation for further details. AUTHOR &; COPYRIGHT copyright 2000, Jeff Zucker <jeff@vpservices.com> all rights reserved perl v5.10.1 2004-08-17 AnyData::Format::Mp3(3pm)
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