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5

Text conversion, binary digits -> hex (or decimal)

rated 0 times [ 5] [ 0] / answers: 1 / hits: 5208 / 2 Years ago, fri, july 15, 2022, 7:51:08

I have a huge text file with digits representing an 8 bit value in binary. I want to convert these to hexadecimal (or decimal, doesn't really matter). That is, I have a text file containing e.g.

0 0 0 0  1 1 0 1

0 0 1 1  1 0 0 1

0 1 0 0  0 1 0 1

1 0 0 0  1 1 0 1

(just 8 bits) and I'd want to convert this to, say,

0x0d

0x39

0x45

0x1d

It sounds like this could be done with an awk script/vim macro, or a combination of any other tools.

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chilgirlguid

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4 Years ago

answered 2 Years ago enefiama · Accepted Answer

Here a snippet of bash scripting to do that

while read line; do

    n=$((2#${line// /}))

    printf '0x%02X

' "$n"

done <input-file

where 2# means base 2 and ${var// /} means "remove all spaces"