Convert Binary Data Stored as ASCII to Binary

Question

Convert Binary Data Stored as ASCII to Binary

I've got a load of binary data stored as ASCII text in a file like this:

0b 0000 0001

0b 0000 0000

0b 1111 0001 

etc

How would I convert this to a raw binary bitstream, and save it to disk?

Can this be done with standard unix tools?

binary shell

3 years ago by vishaljlf39

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**Kajalsi45d** · Answer 1 · 2021-10-06T12:31:24

Have not fully fleshed this out but try the following:

$ cat demo.sh

#!/bin/bash



while read bb nibble1 nibble2

do

    byte=$(printf "%s%s" ${nibble1} ${nibble2} )

    hexstr=$(printf '\\\\x%02x' $((2#${byte})) )

    eval printf "$hexstr"

done < infile > outfile

Using your sample input:

$ ./demo.sh



$ xxd outfile

00000000: 0100 f1                                  ...

$

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Convert Binary Data Stored as ASCII to Binary

1 Answer

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