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 0
  • 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 0
  • 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 1
  • 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 1
  • Insert the last argument of the previous command


    12
    <ALT> .
    new_user · 2010-01-22 15:06:26 2

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Get your external IP address without curl
Curl is not installed by default on many common distros anymore. wget always is :) $ wget -qO- ifconfig.me/ip

grep binary (hexadecimal) patterns
-P activates the Perl regular expression mode.

Use a var with more text only if it exists
See "Parameter Expansion" in the bash manpage. They refer to this as "Use Alternate Value", but we're including the var in the at alternative.

Tar files matching a certain wildcard
This is a shortcut to tar up all files matching a wildcard. Tar doesn't have the --include (apparently).

Scan a document to PDF
Adjust the --resolution and --mode as required (if these options are available for your scanner). The size options (-x, -y, -imageheight, -imagewidth) are for US letter paper. For A4, I think the command would be: $scanimage -p --resolution 250 --mode Gray -x 210 -y 297 | pnmtops -imageheight 11.7 -imagewidth 8.3 | ps2pdf - output.pdf

check open ports without netstat or lsof

convert markdown to PDF
This is the one-line version of this htmldoc + markdown combo to convert markdown formatted text to PDF files to distribute to your non-savvy project managers. http://scottnesbitt.net/ubuntublog/?p=114

execute command on all files of certain types excluding folders that match pattern

Display Spinner while waiting for some process to finish
alternatively, run the spinner for 5 seconds: timeout 5 bash -c 'spinner=( Ooooo oOooo ooOoo oooOo ooooO oooOo ooOoo oOooo); while true; do for i in ${spinner[@]}; do for j in seq 0 ${#i}; do echo -en "\b\b"; done; echo -ne "${i}"; sleep 0.2; done; done'

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

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