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Commands using hexdump

Commands using hexdump from sorted by
Terminal - Commands using hexdump - 17 results
cat /dev/ttyS2 | hexdump -C
2013-05-07 14:54:37
User: techie
Functions: cat hexdump
-3
Up
Down
Hex Dump
Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
hexdump -v -e '"%u"' </dev/urandom|fold -60|head -n 30|sed 's/\(.\{2\}\)/\1 /g'
2013-02-16 12:56:24
User: knoppix5
Functions: fold head hexdump sed
5
Up
Down
generate 30 x 30 matrix

or

od /dev/urandom -w60 -An|sed 's/ ..../ /g'|head -n 30

(this one lacks digits 8 and 9)

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hexdump -C -n 20 filename
2012-03-05 15:57:41
User: aminehmida
Functions: hexdump
0
Up
Down
print first n characters of any file in human readble form using hexdump

Usefull to determine unknown file type

Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
export GREP_COLOR='1;32';while [ true ]; do head -n 100 /dev/urandom; sleep .1; done | hexdump -C | grep --color=auto "ca fe"
2012-02-14 19:30:03
User: tbaschak
Functions: export grep head hexdump sleep true
1
Up
Down
pretend to be busy in office to enjoy a cup of coffee

combination of several of the above

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hexdump -c <file>
2011-09-09 09:54:16
User: totti
Functions: hexdump
Tags: binary print hexdump text
0
Up
Down
print all characters of any file in human readble form using hexdump

- View non printable characters.

- view binary files

Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
dd if=/dev/sda bs=1 count=4 skip=$((0x1b8)) 2>/dev/null | hexdump -n4 -e '"0x%x\n"'
2011-07-30 02:42:32
User: d3Xt3r
Functions: dd hexdump
2
Up
Down
Extract the MBR ID of a device

Useful when you want to know the mbrid of a device - for the purpose of making it bootable. Certain hybridiso distros, for eg the OpenSUSE live ISO uses the mbrid to find the live media. Use this command to find out the mbrid of your USB drive and then edit the /grub/mbrid file to match it.

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hexdump -v -e '"\\""x" 1/1 "%02x" ""' <bin_file>
2010-12-31 15:23:07
User: damncool
Functions: hexdump
0
Up
Down
convert binary data to shellcode
Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
cat /dev/urandom | hexdump -C | highlight ca fe 3d 42 e1 b3 ae f8 | perl -MTime::HiRes -pne "Time::HiRes::usleep(rand()*1000000)"
2010-12-29 21:26:18
User: doherty
Functions: cat hexdump perl
Tags: bash perl hexdump random highlight
1
Up
Down
shell equivalent of a boss button

Nobody wants the boss to notice when you're slacking off. This will fill your shell with random data, parts of it highlighted. Note that 'highlight' is the Perl module App::highlight, not "a universal sourcecode to formatted text converter." You'll also need Term::ANSIColor.

Show sample output | Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
hexdump -e '8/1 "%02X ""\t"" "' -e '8/1 "%c""\n"' /dev/sda1 | less /mystring
2010-12-17 10:28:40
User: gerard
Functions: hexdump less
0
Up
Down
find a particular string on an unmounted partition
Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
while [ true ]; do head -n 100 /dev/urandom; sleep .1; done | hexdump -C | grep "ca fe"
2010-10-05 16:23:31
User: campassi
Functions: grep head hexdump sleep true
6
Up
Down
pretend to be busy in office to enjoy a cup of coffee

Not as taxing on the CPU.

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export GREP_COLOR='1;32'; cat /dev/urandom | hexdump -C | grep --color=auto "ca fe"
2010-10-04 18:08:11
User: zzambia
Functions: cat export grep hexdump
4
Up
Down
pretend to be busy in office to enjoy a cup of coffee
Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
cat /dev/urandom | hexdump -C | grep "ca fe"
2010-09-27 08:20:44
User: BOYPT
Functions: cat grep hexdump
26
Up
Down
pretend to be busy in office to enjoy a cup of coffee

just make some data scrolling off the terminal. wow.

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curl -s http://google.com | hexdump -C|less
2010-02-02 18:54:49
User: chilicuil
Functions: hexdump
3
Up
Down
Dump a web page

Useful to browse dangerous web sites.

Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ifs () { echo -n "${IFS}"|hexdump -e '"" 10/1 "'\''%_c'\''\t" "\n"' -e '"" 10/1 "0x%02x\t" "\n\n"'|sed "s/''\|\t0x[^0-9]//g; $,/^$/d"
2009-10-10 22:41:35
User: dennisw
Functions: echo hexdump sed
Tags: IFS fields separator
2
Up
Down
Functions to display, save and restore $IFS

You can display, save and restore the value of $IFS using conventional Bash commands, but these functions, which you can add to your ~/.bashrc file make it really easy.

To display $IFS use the function ifs shown above. In the sample output, you can see that it displays the characters and their hexadecimal equivalent.

This function saves it in a variable called $saveIFS:

sifs () { saveIFS=$IFS; }

Use this function to restore it

rifs () { IFS=$saveIFS; }

Add this line in your ~/.bashrc file to save a readonly copy of $IFS:

declare -r roIFS=$IFS

Use this function to restore that one to $IFS

rrifs () { IFS=$roIFS; }
Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
cat testfile | hexdump -C
2009-09-07 11:08:43
User: zed_0xff
Functions: cat hexdump
Tags: hex hexdump dump
0
Up
Down
Hexadecimal dump of a file, pipe, or anything
Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
while true; do beep -l66 -f`head -c2 /dev/input/mice|hexdump -d|awk 'NR==1{print $2%10000}'`; done
2009-07-11 12:01:27
User: 5z474n
Functions: awk hexdump
2
Up
Down
Hear the mice moving

Beeps on mouse's every move. Bear in mind that, at least on Ubuntu, /dev/input/mice can be read only by root.

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hexdump -e '90/1 "%_p" "\n"' /dev/mem | less
2009-05-12 16:20:57
User: copremesis
Functions: hexdump
3
Up
Down
view the system memory in clear text

see what's in your memory right now... sometimes you find passwords, account numbers and url's that were recently used. Anyone have a safe command to clear the memory without rebooting?

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate