Commands by PLA (7)

  • Put public IP address in a variable


    2
    ip=$(curl ip.pla1.net)
    PLA · 2016-01-28 19:29:48 16
  • Send a message to Kodi (XBMC)

    Send a text message to an Kodi (XBMC) device. Uses curl to post a JSON request to the Kodi JSON-RPC API.


    0
    curl -X POST -H "Content-Type: application/json" -d '{"jsonrpc":"2.0","method":"GUI.ShowNotification","params":{"title":"This is the title of the message","message":"This is the body of the message"},"id":1}' http://i3c.pla.lcl:8080/jsonrpc
    PLA · 2014-08-24 21:49:13 31
  • Determine MythTV Version on a Debian System

    Use this command to determine what version of MythTV you are running on a Debian system. Tested on a Mythbuntu installation. Show Sample Output


    -2
    apt-cache policy mythtv
    PLA · 2011-08-05 17:34:41 4
  • Using wget to receive an XML atom feed of your Gmail inbox

    I use this command in my Conky script to display the number of messages in my Gmail inbox and to list the from: and subject: fields. Show Sample Output


    -3
    wget -O - 'https://USERNAMEHERE:PASSWORDHERE@mail.google.com/mail/feed/atom' --no-check-certificate
    PLA · 2010-09-26 14:47:13 7
  • ffmpeg command that transcodes a MythTV recording for Google Nexus One mobile phone

    This command will transcode a MythTV recording. The target device is a Google Nexus One mobile phone. My recordings are from a HDHomerun with Over The Air content. Plays back nicely on the N1.


    2
    ffmpeg -i /var/lib/mythtv/pretty/Chuck20100208800PMChuckVersustheMask.mpg -s 800x480 -vcodec mpeg4 -acodec libfaac -ac 2 -ar 16000 -r 13 -ab 32000 -aspect 16:9 Chuck20100208800PMChuckVersustheMask.mp4
    PLA · 2010-02-12 12:11:02 8
  • Extract audio from Mythtv recording to Rockbox iPod using ffmpeg

    There are some pretty good live performances on late night TV. With Mythtv I record David Letterman, Jimmy Fallon, and Conan nightly all in HD from over the air broadcasts. If I find a live performance I like I copy it to my Rockboxed iPod using this command. The Rockbox firmware knows how to downmix 5.1 audio. The command above extracts the audio from the video starting at 58 minutes and 15 seconds. It ends at the end of the file since this was the last performance of the recording. The command creates an ac3 file. I copy the ac3 file to my Rockbox iPod and rock on.


    3
    ffmpeg -ss 0:58:15 -i DavidLettermanBlackCrowes.mpg -acodec copy DavidLettermanBlackCrowes.ac3
    PLA · 2009-09-14 00:08:36 3
  • Use xdg-open to avoid hard coding browser commands

    I rarely use the system menu to start applications. I use keyboard shortcuts instead. Keyboard shortcuts are convenient time savers. To configure the shortcuts I use gconf-editor or CompizConfig Settings Manager (if I have Compiz turned on). Lately I've been using Chromium as my browser. Since Chromium is under heavy development it occasionally becomes unusable and I have to switch back to Firefox. I was hard-coding the browser command in my keyboard shortcuts. This became problematic with frequent browser hopping. I now use the xdg-open command when defining my keyboard shortcuts. xdg-open opens a file or URL in the user's preferred application. In the metacity keybinging_commands I have xdg-open http://gmail.com where I used to have firefox http://gmail.com. Now when switching browsers I don't have to update each keyboard binding command I just change my default browser in Ubuntu by clicking through the menu: System / Preferences / Preferred Applications / Web Browser. xdg-open is more convenient for this browser hopper.


    8
    xdg-open http://gmail.com
    PLA · 2009-07-11 11:48:32 10

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Concatenate video files to YouTube ready output
Takes two input video files and an external audio track and encodes them together to an MPEG-4 DivX output video file with the correct size ready for uploading.

Simple Video Surveillance by email
This takes a picture (with the web cam) every 5 minutes, and send the picture to your e-mail. Some systems support mail -a "References: " so that all video surveillance emails are grouped in a single email thread. To keep your inbox clean, it is still possible to filter and move to trash video surveillance emails (and restore these emails only if you really get robbed!) For instance with Gmail, emails sent to me+trash@gmail.com can be filtered with "Matches: DeliveredTo:me+trash@gmail.com"

Draw kernel module dependancy graph.
parse "lsmod" output to "dot" format and pass it to "display". Without perl!

bulk rename files with sed, one-liner
Far from my favorite, but works in sh and with an old sed that doesn't support '-E'

Rename files in batch

Install pip with Proxy
Installs pip packages defining a proxy

Content search.
Grep will read the contents of each file in PWD and will use the REs $1 $2 ... $n to match the contents. In case of match, grep will print the appropriate file, line number and the matching line. It's just easier to write $ ff word1 word2 word3 Instead of $ grep -rinE 'word1|word2|word3' .

updatedb for MAC OSX
MAC OSX doesn't come with an updatedb command by default, this will emulate the updatedb thats on a typical Linux OS. Simply add it to your ~/.bash_profile

Create a local compressed tarball from remote host directory
This improves on #9892 by compressing the directory on the remote machine so that the amount of data transferred over the network is much smaller. The command uses ssh(1) to get to a remote host, uses tar(1) to archive and compress a remote directory, prints the result to STDOUT, which is written to a local file. In other words, we are archiving and compressing a remote directory to our local box.

Advanced python tracing
Trace python statement execution and syscalls invoked during that simultaneously

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