Commands by pykler (19)

  • Get your external IP and Network Info

    Gets all kind of info, ifconfig.me rocks ... for just the ip addess you can use ifconfig.me or ifconfig.me/ip Show Sample Output


    9
    curl ifconfig.me/all
    pykler · 2012-05-16 18:22:28 8
  • Split tsv file by fifth column ... or any column

    Will split the std input lines into files grouped by the 5th column content.


    0
    awk -F'\t' '{print $0 >>$5.tsv}'
    pykler · 2012-05-16 18:18:16 3
  • Realtime lines per second in a log file

    Realtime lines per second in a log file using python ... identical to perl version, except python is much better :) Show Sample Output


    0
    tail -F /var/log/nginx/access.log | python -c 'exec("import sys,time\nl=0\ne=int(time.time())\nfor line in sys.stdin:\n\tt = int(time.time())\n\tl += 1\n\tif t > e:\n\t\te = t\n\t\tprint l\n\t\tl = 0")'
    pykler · 2012-05-15 21:56:46 4
  • locating packages held back, such as with "aptitude hold <package>"

    locating packages held back, such as with "aptitude hold "


    1
    aptitude search ~ahold
    pykler · 2012-04-29 15:02:32 4
  • Show what PID is listening on port 80 on Linux


    17
    fuser -v 80/tcp
    pykler · 2011-12-16 14:51:34 3
  • Rsync a directory excluding pesky .svn dirs


    4
    rsync -rv --exclude .svn src/dir/ dest/dir/
    pykler · 2011-11-15 21:42:22 8
  • check open ports (both ipv4 and ipv6)


    4
    lsof -Pn | grep LISTEN
    pykler · 2011-09-29 18:21:51 10
  • Start a quick rsync daemon for fast copying on internal secure network

    An example config file is placed in the sample output along with the command line call to use it. The rsync daemon here is setup on the destination, thus requiring the read only = false flag. Also it uses uid and gid of root, change as required. Show Sample Output


    -3
    rsync --daemon --port 9999 --no-detach -v --config .rsyncd.conf
    pykler · 2011-09-22 20:48:31 3
  • Broadcast your shell thru port 5000

    Doesn't work so well if you connect from windows. Linux only sends LF where windows wants CRLF. The alternative command works better with windows, however it uses script and a named pipe.


    4
    bash -i 2>&1 | tee /dev/stderr | nc -l 5000
    pykler · 2010-10-20 18:32:12 3
  • Display sqlite results one column per line

    Similar output to using MySQL with the \G at the end of a Query. Displays one column per line. Other modes include: -column Query results will be displayed in a table like form, using whitespace characters to separate the columns and align the output. -html Query results will be output as simple HTML tables. -line Query results will be displayed with one value per line, rows separated by a blank line. Designed to be easily parsed by scripts or other programs -list Query results will be displayed with the separator (|, by default) character between each field value. The default. From inside the command line this can be also changed using the mode command: .mode MODE ?TABLE? Set output mode where MODE is one of: csv Comma-separated values column Left-aligned columns. (See .width) html HTML code insert SQL insert statements for TABLE line One value per line list Values delimited by .separator string tabs Tab-separated values tcl TCL list elements Show Sample Output


    0
    sqlite3 -line database.db
    pykler · 2010-10-09 16:10:19 8
  • Make any command read line enabled (on *nix)

    Enable readline even if the command line application is not using it. Show Sample Output


    8
    rlwrap sqlite3 database.db
    pykler · 2010-10-09 15:56:08 7
  • Add an audio soundtrack to a series of images to create an flv

    Creates a 5 minute flv file, with the given sequence of images and audio with 0.5 fps. The images were created using the following command: for x in `seq 0 300`; do cp ../head.PNG head-`printf '%03d' $x`.png; done You can also inject metadata to seek easier using yamdi as follows: yamdi -i muxed.flv -o video.flv Show Sample Output


    4
    ffmpeg -t 300 -r '0.5' -i head-%03d.png -i ../TvQuran.com__144.mp3 -acodec copy muxed.flv
    pykler · 2010-10-07 16:29:08 3
  • Get your external IP address

    With a lolcat favicon if you access it from your browser Show Sample Output


    -2
    curl icanhazip.com
    pykler · 2010-06-14 18:47:11 3
  • Pretty Print a simple csv in the command line

    Will handle pretty much all types of CSV Files. The ^M character is typed on the command line using Ctrl-V Ctrl-M and can be replaced with any character that does not appear inside the CSV. Tips for simpler CSV files: * If newlines are not placed within a csv cell then you can replace `map(repr, r)` with r Show Sample Output


    1
    python -c 'import sys,csv; c = csv.reader(sys.stdin); [sys.stdout.write("^M".join(map(repr,r))+"\n") for r in c];' <tmp/test.csv | column -s '^M' -t
    pykler · 2010-02-01 14:57:25 7
  • Print unique ipaddresses as they come in from Apache Access Log File

    Prints the unique IP Addresses as they arrive from an Apache `access.log` file. The '-W interactive' tells awk to start writing to stdout immediately and not buffer the output. This command builds on the uniq lines without sorting command (http://www.commandlinefu.com/commands/view/4389/remove-duplicate-entries-in-a-file-without-sorting.)


    1
    tail -f /var/log/apache2/access.log | awk -W interactive '!x[$1]++ {print $1}'
    pykler · 2010-01-12 15:23:03 9
  • List your largest installed packages.

    Calculates the size on disk for each package installed on the filesystem (or removed but not purged). This is missing the | sort -rn which would put the biggest packges on top. That was purposely left out as the command is slightly on the slow side Also you may need to run this as root as some files can only be checked by du if you can read them ;) Show Sample Output


    5
    dpkg --get-selections | cut -f1 | while read pkg; do dpkg -L $pkg | xargs -I'{}' bash -c 'if [ ! -d "{}" ]; then echo "{}"; fi' | tr '\n' '\000' | du -c --files0-from - | tail -1 | sed "s/total/$pkg/"; done
    pykler · 2009-10-12 14:57:54 5
  • Matrix Style

    Same as the cool matrix style command ( http://www.commandlinefu.com/commands/view/3652/matrix-style ), except replacing the printed character with randomness. The command mentioned is much faster and thus more true to the matrix. However, mine can be optimized, but I wasted ... i mean spent enough time on it already Show Sample Output


    6
    check the sample output below, the command was too long :(
    pykler · 2009-09-29 19:30:10 135
  • Pretty Print a simple csv in the command line

    Splits the input based on commas and prints it in a nice column format. This would not work for CSV rows that have "," between quotes or with newline characters. Use only simple simple csv files. Show Sample Output


    18
    column -s, -t <tmp.csv
    pykler · 2009-09-24 20:57:32 11
  • send echo to socket network

    Using netcat, usuallly installed on debian/ubuntu. Also to test against a sample server the following two commands may help echo got milk? | netcat -l -p 25 python -c "import SocketServer; SocketServer.BaseRequestHandler.handle = lambda self: self.request.send('got milk?\n'); SocketServer.TCPServer(('0.0.0.0', 25), SocketServer.BaseRequestHandler).serve_forever()" Show Sample Output


    2
    echo foo | netcat 192.168.1.2 25
    pykler · 2009-09-13 01:33:02 4

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vi a new file with execution mode
$ vix /tmp/script.sh Open a file directly with execution permission. Put the function in your .bashrc You can also put this in your vimrc: $ command XX w | set ar | silent exe "!chmod +x %" | redraw! and open a new file like this: $ vi +XX /tmp/script.sh

Run a file system check on your next boot.
The empty file /forcefsck causes the file system check fsck to be run next time you boot up, after which it will be removed. This works too: $sudo >/forcefsck

Equivalent to ifconfig -a in HPUX
Command is properly working on HP-UX 11.31

view certificate details

Remount an already-mounted filesystem without unmounting it
Necessary for fsck for example. The remount functionality follows the standard way how the mount command works with options from fstab. It means the mount command doesn't read fstab (or mtab) only when a device and dir are fully specified. After this call all old mount options are replaced and arbitrary stuff from fstab is ignored, except the loop= option which is internally generated and maintained by the mount command. It does not change device or mount point.

a function to find the fastest DNS server
http://public-dns.info gives a list of online dns servers. you need to change the country in url (br in this url) with your country code. this command need some time to ping all IP in list.

Create executable, automountable filesystem in a file, with password!
This is just a proof of concept: A FILE WHICH CAN AUTOMOUNT ITSELF through a SIMPLY ENCODED script. It takes advantage of the OFFSET option of mount, and uses it as a password (see that 9191? just change it to something similar, around 9k). It works fine, mounts, gets modified, updated, and can be moved by just copying it. USAGE: SEE SAMPLE OUTPUT The file is composed of three parts: a) The legible script (about 242 bytes) b) A random text fill to reach the OFFSET size (equals PASSWORD minus 242) c) The actual filesystem Logically, (a)+(b) = PASSWORD, that means OFFSET, and mount uses that option. PLEASE NOTE: THIS IS NOT AN ENCRYPTED FILESYSTEM. To improve it, it can be mounted with a better encryption script and used with encfs or cryptfs. The idea was just to test the concept... with one line :) It applies the original idea of http://www.commandlinefu.com/commands/view/7382/command-for-john-cons for encrypting the file. The embedded bash script can be grown, of course, and the offset recalculation goes fine. I have my own version with bash --init-file to startup a bashrc with a well-defined environment, aliases, variables.

Write comments to your history.
A null operation with the name 'comment', allowing comments to be written to HISTFILE. Prepending '#' to a command will *not* write the command to the history file, although it will be available for the current session, thus '#' is not useful for keeping track of comments past the current session.

use xxd to create the wake on lan magicpacket and write to pcap file
just set macdst to the mac address of the system you wish to wake up, the macsrc is optional but helps use tcpreplay to broadcast or wireshark to view

Use Dell Service Tag $1 to Find Machine Model [Model Name and Model Number]
255 Max Characters CommandLineFu for $dellurl='http://support.dell.com/support/topics/global.aspx/support/my_systems_info/en/details?c=us&cs=04&l=en&s=hied&ServiceTag='

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