Thank you both for the response! To elaborate on my question, let's assume that the input file contains a binary number of:
Output should be:
This is purely binary input. I only added the "_" for readability.
I understand that we cannot write a file on non byte boundaries. So if I would always have 7 extra bits when this is written to the file. This would mean that my output file will look like:
When I run the code below, I get an output of:
I think I am still misusing the pack command. What am I missing?
my $inputfile = $ARGV;
my $outputfile = $ARGV;
my $buff = "";
my $mybuff = "";
open (PARSER_FILE, $inputfile)
or die "Couldn't open $inputfile for reading";
open (OUT_FILE, ">", $outputfile)
or die "Couldn't open $outputfile for writing";
read(PARSER_FILE, $buff, 4);
$outbuff = unpack("b32", $buff);
syswrite OUT_FILE, pack("b33", 1, $outbuff);
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