Commands by new_user (5)

  • Display BIOS Information

    read the memory from C:0000 to F:FFFF without the need auf dmidecode


    16
    # dd if=/dev/mem bs=1k skip=768 count=256 2>/dev/null | strings -n 8
    new_user · 2010-07-02 09:38:19 62
  • List your installed Chromium extensions (with url to each page)

    Gives you a list for all installed chrome (chromium) extensions with URL to the page of the extension. With this you can easy add a new Bookmark folder called "extensions" add every URL to that folder, so it will be synced and you can access the names from every computer you are logged in. ------------------------------------------------------------------------------------------------------------------ Only tested with chromium, for chrome you maybe have to change the find $PATH. Show Sample Output


    3
    for i in $(find ~/.config/chromium/*/Extensions -name 'manifest.json'); do n=$(grep -hIr name $i| cut -f4 -d '"'| sort);u="https://chrome.google.com/extensions/detail/";ue=$(basename $(dirname $(dirname $i))); echo -e "$n:\n$u$ue\n" ; done
    new_user · 2010-05-18 15:16:36 7
  • List your installed Firefox extensions

    1.) my profile ends with $USER not with .default 2.) only grep for the first occurrence because some extensions have the translated name also inside the install.rdf Show Sample Output


    -1
    grep -hIr -m 1 :name ~/.mozilla/firefox/*.$USER/extensions | tr '<>=' '"""' | cut -f3 -d'"' | sort -u
    new_user · 2010-05-18 14:49:44 6
  • Insert the last command without the last argument (bash)

    /usr/sbin/ab2 -f TLS1 -S -n 1000 -c 100 -t 2 http://www.google.com/ then !:- http://www.commandlinefu.com/ is the same as /usr/sbin/ab2 -f TLS1 -S -n 1000 -c 100 -t 2 http://www.commandlinefu.com/


    79
    !:-
    new_user · 2010-05-15 15:12:47 21
  • Insert the last argument of the previous command


    12
    <ALT> .
    new_user · 2010-01-22 15:06:26 17

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands

Check These Out

Combine two mp3's or more into 1 long mp3
This just combines multiple mp3's into one mp3 file. Basically it is a easy join for mp3's

Get AWS temporary credentials ready to export based on a MFA virtual appliance
You might want to secure your AWS operations requiring to use a MFA token. But then to use API or tools, you need to pass credentials generated with a MFA token. This commands asks you for the MFA code and retrieves these credentials using AWS Cli. To print the exports, you can use: `awk '{ print "export AWS_ACCESS_KEY_ID=\"" $1 "\"\n" "export AWS_SECRET_ACCESS_KEY=\"" $2 "\"\n" "export AWS_SESSION_TOKEN=\"" $3 "\"" }'` You must adapt the command line to include: * $MFA_IDis ARN of the virtual MFA or serial number of the physical one * TTL for the credentials

diff the outputs of two programs
I've been looking for this for a long time. Does anybody know how to do this in dash (POSIX shell)? An alternative version might be: $ exiftool img_1.jpg | diff -

Cancel all aptitude scheduled actions
Very handy if you have done a package selection mistake in aptitude. Note that it's better to do a Ctrl+U (undo) in aptitude if possible, because the keep-all will clear some package states (like the 'hold' state).

list block devices
Shows all block devices in a tree with descruptions of what they are.

Perl Command Line Interpreter
Can also just use the debug mode like this.

Network Folder Copy with Monitoring ( tar + nc + pv )
Transfer tar stream thru nc with pv montoiring taken from: http://www.catonmat.net/blog/unix-utilities-pipe-viewer/

First pass dvd rip... The set of commands was too long, so I had to separate them into two.
This set of commands will rip a dvd title using a 2 pass mencoder xvid encode. It will provide a great quality rip. It will rip as close to 700MB as possible. (note the bitrate of -700000) Enjoy!

Show IP Address in prompt --> PS1 var
when working with many machines in a computer lab need to know the IP addr is very large, this is a simplistic solution to make things easier

Mac Sleep Timer
Schedule your Mac to sleep at any future time. Also wake, poweron, shutdown, wakeorpoweron. Or repeating with $ sudo pmset repeat wakeorpoweron MTWRFSU 7:00:00 Query with $ pmset -g sched Lots more at http://www.macenterprise.org/articles/powermanagementandschedulingviathecommandline

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for: