/usr/bin/mysql_fix_extensions is in mysql-client-5.5 5.5.54-0ubuntu0.12.04.1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 | #!/usr/bin/perl
# Copyright (c) 2001 MySQL AB, 2009 Sun Microsystems, Inc.
# Use is subject to license terms.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; version 2
# of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public
# License along with this library; if not, write to the Free
# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
# MA 02110-1301, USA
# This is a utility for MySQL. It is not needed by any standard part
# of MySQL.
# Usage: mysql_fix_extentions datadir
# does not work with RAID, with InnoDB or BDB tables
# makes .frm lowercase and .MYI/MYD/ISM/ISD uppercase
# useful when datafiles are copied from windows
die "Usage: $0 datadir\n" unless -d $ARGV[0];
for $a (<$ARGV[0]/*/*.*>) { $_=$a;
s/\.frm$/.frm/i;
s/\.(is[md]|my[id])$/\U$&/i;
rename ($a, $_) || warn "Cannot rename $a => $_ : $!";
}
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