blobutils
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| + | ===== blobutils ===== | ||
| + | Tools to manipulate binary data in Unix, because it was a nightmare. | ||
| + | |||
| + | They are not fast (written in shell and Python), I usually need to convert only several bytes, so it does not matter. | ||
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| + | http://jenda.hrach.eu/gitweb/?p=blobutils;a=summary | ||
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| + | Terms: bin: raw binary data; bits: ascii '0' and '1'; hex: ascii hexdump | ||
| + | |||
| + | blbgrep: grep binary file | ||
| + | <code> | ||
| + | > blbgrep data.bin 04 ee 04 7e | ||
| + | data.bin:<offset> | ||
| + | </code> | ||
| + | blbinhex: hexdump (binary to hexa) | ||
| + | |||
| + | blbithex: bits to hex | ||
| + | <code> | ||
| + | > echo 1110 0011 | blbithex | ||
| + | E3 | ||
| + | </code> | ||
| + | |||
| + | blcstruct: unpack C structure, e.g. "blcstruct f" unpacks array of floats | ||
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| + | blhexbin: hex to binary | ||
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| + | blhexbit: hex to bits | ||
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| + | blhexbitmap: hex to black and white image (e.g. adafruit gfx format) | ||
| + | <code> | ||
| + | echo 22 54 54 78 42 | blhexbitmap | ||
| + | ██ ███ █ | ||
| + | █ █ █ ██ | ||
| + | █ █ █ ██ | ||
| + | █ ███ | ||
| + | █ ████ █ | ||
| + | </code> | ||
| + | |||
| + | blhexflip: interactive binary editor | ||
| + | |||
| + | blhexrev: no idea | ||
| + | |||
| + | blrev: MSB to LSB format | ||
| + | |||
| + | blxor: 64bit xor (used heavily during implementation of A5/1 cracker) | ||
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| + | dechex, dechex: base convert | ||
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| + | gp.sh: 1D data plot. First column is label, second value. Parameter is filename. | ||
| + | <code> | ||
| + | echo -e "bla -7.247 \nble 3.28 \nfoo 0.3 \nxx 1" | gp.sh my_numbers | ||
| + | </code> | ||
| + | |||
| + | gr-pack, gr-unpack: convert binary to gnuradio bytes and back | ||
| + | |||
| + | itemize: add line numbers (I did not know about nl command back then) | ||
| + | |||
| + | sum.sh: sum numbers, one per line | ||
| + | <code> | ||
| + | echo -e "-7.247 \n 3.28 \n 0.3 \n 1" | sum.sh | ||
| + | -2.667 | ||
| + | </code> | ||
| + | |||
| + | udate: unix timestamp to human-readable date | ||
blobutils.txt · Last modified: 2015-11-20 00:50:33 (external edit)
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