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Is there a command line Linux tool that will find and replace Hex representation of data in a binary file? Example Usage?

For example: 's/00FF00FFFF06500B49/11BB00BFFF06500B49/g'

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There's a similar question here. –  Dennis Williamson Apr 9 '10 at 19:18
    
@Dennis Williamson, Agreed but those answers are more programmatic then an expected answer on ServerFault (i.e. several include non-sed/awk source code). –  mctylr Apr 9 '10 at 19:35

1 Answer 1

up vote 1 down vote accepted

Perl Scirpt:

my $find_packed = pack "H*", '0100000000000000FF0A16731485400000000000FFA10201FF22FFFFFFFF0200';
my $repl_packed = pack "H*", '0100000000000000FF0A16731485400010FFC545FFA10201FF22FFFFFFFF0200';
my $file = do { local $/; <> };
$file =~ s/\Q$find_packed/$repl_packed/g;
print $file;

Usage:

perl hexreplace.pl in_binary > out_binary

The above unpolished version seems to have worked for me, thanks to the guys in #perl on freenode :-)

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I'm deleting my post about sed, it's not the right tool for this, sorry. –  kbyrd Apr 9 '10 at 20:34

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