Save stdout to hex file

Question

I have my own command line program which I am running on the terminal. How might I redirect the output from this program to file so that I can see a hex representation of it? I also wish the control characters outputted from the program to be saved to hex.

UPDATE

My program also receives commands on the terminal via std input. It seems doing:

myprogram 9889 > output.txt

or even

myprogram 9889 | xxd

disrupts the program in some manner such that I cant seem to get the program to respond to inputted commands.

Why do you need to save it? Just append `| xxd`. – choroba Jan 18 '13 at 16:11 — choroba, Jan 18 '13 at 16:11

score 2 · Answer 1 · answered Jan 18 '13 at 16:11

2

you did not mention the operating system you are using. in Linux you can use hexdump

your_console_app | hexdump -C

answered Jan 18 '13 at 16:11

Alex P.

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The question is tagged with `linux` – Cyclonecode Jan 18 '13 at 16:13

score 1 · Answer 2 · answered Jan 18 '13 at 16:11

1

program > file.txt

This will redirect all STDOUT of program to file.txt

If you want to read more about redirection, read me

answered Jan 18 '13 at 16:11

Suku

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score 0 · Answer 3 · edited Jan 18 '13 at 16:15

0

Don't do this.

It's better to save the file as is, i.e. save the exact bytes output by your program.

Then, when you want to display the data, view it as hexadecimal data.

$ program >output.txt
$ hexdump -C output.txt

This uses the hexdump program which is common in Linux. You should have it.

edited Jan 18 '13 at 16:15

Cyclonecode

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answered Jan 18 '13 at 16:13

unwind

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When I try this, only the startup banner from my program is stored to the file. When I start entering data on the stdin (after startup), the responses are missing from the hex log. – Baz Jan 18 '13 at 16:36

Save stdout to hex file

3 Answers3