Re^2: How to concatenate binary files

I've never done this kind of thing, so this is a completely ignorant question: why don't you do the whole thing with a single call to zip -A, like this:

my $sfx = File::Spec->catfile(LocationOfUnzipsfxExe(), 'unzipsfx.exe')
+;
system( qw( zip -A ), $exe, $sfx, $zip ) and die "$?";
unlink $zip;
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the lowliest monk

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Re^3: How to concatenate binary files by Tanktalus (Canon) on Apr 12, 2005 at 23:45 UTC
That's a very good and interesting question. I suppose the reason why I did it the way above is because it's a perl interpretation of the unzipsfx docs (check the man page on unzipsfx - the EXAMPLES section near the bottom). A quick test shows: `$ zip -A mysfx /usr/bin/unzipsfx x adding: usr/bin/unzipsfx (deflated 52%) adding: x (deflated 12%) $ file mysfx mysfx: Zip archive data, at least v2.0 to extract` [download] which is far from what we want. The output is still a zip file. But, if we do the shell version of the perl code above, we get: `$ cat /usr/bin/unzipsfx mysfx > mysfx_exe $ zip -A mysfx_exe mysfx_exe: adjusting offsets for a preamble of 47552 bytes $ file mysfx_exe mysfx_exe: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), f +or GNU/Linux 2.2.5, dynamically linked (uses shared libs), stripped` [download] I hope that helps.	[reply] [d/l] [select]

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Re^3: How to concatenate binary files
by Tanktalus (Canon) on Apr 12, 2005 at 23:45 UTC

That's a very good and interesting question. I suppose the reason why I did it the way above is because it's a perl interpretation of the unzipsfx docs (check the man page on unzipsfx - the EXAMPLES section near the bottom).

A quick test shows:

$ zip -A mysfx /usr/bin/unzipsfx x
  adding: usr/bin/unzipsfx (deflated 52%)
  adding: x (deflated 12%)
$ file mysfx
mysfx: Zip archive data, at least v2.0 to extract
[download]

$ cat /usr/bin/unzipsfx mysfx > mysfx_exe
$ zip -A mysfx_exe
mysfx_exe: adjusting offsets for a preamble of 47552 bytes
$ file mysfx_exe
mysfx_exe: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), f
+or GNU/Linux 2.2.5, dynamically linked (uses shared libs), stripped
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