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Commands tagged od

Terminal - Commands tagged od - 7 results

cat /dev/urandom|od -t x1|awk 'NR > line { pos=int(rand()*15)+2;printf("%s",$pos);line=NR+(rand()*1000);digits = digits+2 } digits == 64 { print("\n");exit }'

2012-08-14 19:02:00

User: jetdillo

Functions: awk cat exit od

Tags: Os X Linux awk bsd random od /dev/urandom

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extracts 64 bytes of random digits from random lines out of /dev/random sent to stdio

Use this the next time you need to come up with a reasonably random bitstring, like for a WPA/WPA2 PSK or something. Takes a continuous stream of bytes coming from /dev/urandom, runs it through od(1), picking a random field ($0 and $1 excluded) from a random line and then prints it.

echo -n "text" | od -A n -t x1 |sed 's/ /\\x/g'

2010-07-14 15:31:36

User: camocrazed

Functions: echo od sed

Tags: sed hex ascii od

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Convert ascii string to hex

If you're going to use od, here's how to suppress the labels at the beginning. Also, it doesn't output the \x, hence the sed command at the end. Remove it for space separated hex values instead

od -c <FILE> | grep --color '\\.'

2009-12-11 02:15:48

User: sputnick

Functions: grep od

Tags: od

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See non printable caracters like tabulations, CRLF, LF line terminators ( colored )

For fancier and cleaner output, try the following snippet :

showendlines(){ while read i; do od --address-radix=n --width=$(wc -c <<< "$i") -c <<< "$i" | perl -pe 's/.\K\s{2,3}//g'; done < $1 | grep --color '\\.'; }

Now you can run that with :

showendlines <FILE>

Thanks to prince_jammys to "debug" my English ;)

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

n=$RANDOM$RANDOM$RANDOM; let "n %= 10000000000"; echo $n

2009-10-15 05:10:00

User: alset

Functions: echo

Tags: sed HEAD od

-2

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Outputs a 10-digit random number

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echo $RANDOM$RANDOM$RANDOM |cut -c3-12

2009-10-13 08:08:45

User: emmerich164

Functions: cut echo

Tags: sed HEAD od

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Outputs a 10-digit random number

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head -c4 /dev/urandom | od -N4 -tu4 | sed -ne '1s/.* //p'

2009-10-08 11:27:20

User: opexxx

Functions: head od sed

Tags: sed HEAD od

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Outputs a 10-digit random number

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(Command too long..See sample Output..)

2009-06-14 20:34:37

User: mohan43u

Tags: bash sed echo tr od

-3

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urlencode

curl doesn't provide url-encoding for 'GET' data, it have an option '--data-urlencode', but its only for 'POST' data. Thats why I need to write down this commandline. With 'perl', 'php' and 'python', this is one liner, but just I wrote it for fun. Works in Ubuntu, will work in all linux varients(I hope it will work in unix varients also).