Commands by dabom (5)

  • Doubt it actually generates valid mac addresses but this version doesn't need any external commands so it runs much faster. Much shorter as well. Show Sample Output


    2
    h=0123456789ABCDEF;for c in {1..12};do echo -n ${h:$(($RANDOM%16)):1};if [[ $((c%2)) = 0 && $c != 12 ]];then echo -n :;fi;done;echo
    dabom · 2010-12-05 01:35:03 0
  • Shorter regex. Show Sample Output


    1
    shout() { curl -s "http://shoutkey.com/new?url=${1}" | sed -n "/<h1>/s/.*href=\"\([^\"]*\)\".*/\1/p" ;}
    dabom · 2010-10-05 19:15:50 1
  • Shorter and made into a function. Show Sample Output


    4
    googl () { curl -s -d "url=${1}" http://goo.gl/api/url | sed -n "s/.*:\"\([^\"]*\).*/\1\n/p" ;}
    dabom · 2010-10-03 02:52:44 0
  • Really bored during class so I made this... Basically, you hold period (or whatever) and hit enter after a second and you need to make the next line of periods the same length as the previous line... My record was 5 lines of the same length. It's best if you do it one handed with your pointer on period and ring on enter.


    9
    count="1" ; while true ; do read next ; if [[ "$next" = "$last" ]] ; then count=$(($count+1)) ; echo "$count" ; else count="1" ; echo $count ; fi ; last="$next" ; done
    dabom · 2010-03-30 04:02:29 18
  • (Apparently it is too long so I put it in sample output, I hope that is OK.) Run the long command (or put it in your .bashrc) in sample output then run: fbemailscraper YourFBEmail Password Voila! Your contacts' emails will appear. Facebook seems to have gotten rid of the picture encoding of emails and replaced it with a text based version making it easy to scrape! Needs curl to run and it was made pretty quickly so there might be bugs. Show Sample Output


    4
    fbemailscraper YourFBEmail Password
    dabom · 2010-01-31 00:44:35 24

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Kill a broken ssh connection
This is useful for example if you are on ssh in a server and the server goes down without letting you out. This is part of a larget sets of escape sequences provided by ssh. You can find them with ~? Here's the list: ~. - terminate connection (and any multiplexed sessions) ~B - send a BREAK to the remote system ~C - open a command line ~R - request rekey ~V/v - decrease/increase verbosity (LogLevel) ~^Z - suspend ssh ~# - list forwarded connections ~& - background ssh (when waiting for connections to terminate) ~? - this message ~~ - send the escape character by typing it twice (Note that escapes are only recognized immediately after newline.)

Replace spaces in filename
This command will replace spaces in filename with underscore, for all file in directory that contain spaces.

Remove all zero size files from current directory (not recursive)

Swap the two last arguments of the current command line
Say you just typed a long command like this: $ rsync -navupogz --delete /long/path/to/dir_a /very/long/path/to/dir_b but you really want to sync dir_b to dir_a. Instead of rewriting all the command line, just type followed by , and your command line will read $ rsync -navupogz --delete /very/long/path/to/dir_b /long/path/to/dir_a

Check syntax of all Perl modules or scripts underneath the current directory
Finds all *.p[ml]-files and runs a perl -c on them, checking whether Perl thinks they are syntactically correct

String to binary
Cool but useless.

Find files with the same names in several directories.
cat file1 file2 file3|sort|uniq -d finds the same lines in several files, especially in files with lists of files.

Detect illegal access to kernel space, potentially useful for Meltdown detection
Based on capsule8 agent examples, not rigorously tested

Use acpi and notify-send to report current temperature every five minutes.
works best in a shell script run at startup. It will ping localhost once and output to null, after it does that, acpi is called for temperature in fahrenheit and piped through to another loop that feeds notify-send for a tooltip. After waiting five minutes, it will start over.

Search some text from all files inside a directory


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