Commands tagged xwindows (3)

  • Find

    A lot of X applications accept --geometry parameter so that you can set application size and position. But how can you figure out the exact arguments for --geometry? Launch an application, resize and reposition its window as needed, then launch xwininfo in a terminal an click on the application window. You will see some useful window info including its geometry. Show Sample Output


    3
    xwininfo
    jackhab · 2009-08-13 14:15:39 3
  • disable caps lock

    a quick one-line way to disable caps lock while running X.


    2
    xmodmap -e "remove Lock = Caps_Lock"
    mzandrew · 2009-02-27 16:44:22 8
  • Track X Window events in chosen window

    After executing this, click on a window you want to track X Window events in. Explaination: "xev will track events in the window with the following -id, which we get by greping window information obtained by xwininfo" Show Sample Output


    2
    xev -id `xwininfo | grep 'Window id' | awk '{print $4}'`
    ktoso · 2009-09-19 22:47:16 6

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Top 10 Memory Processes (reduced output to applications and %usage only)
Top 10 Memory Processes (reduced output to applications and %usage only)

To have only unique lines in a file

Converts uppercase chars in a string to lowercase
Another alternative is to define a function: lower() { echo ${@,,} } lower StrinG

Clean your broken terminal
When some console full-screen program (minicom, vi, some installers) breaks down your terminal, try this command to revert all options to "sane" settings (sane is a built-in combo of a lot of stty options)

Sort output by column
(separator = $IFS)

Start dd and show progress every X seconds
Adjust "sleep X" to your needs. *NOTE: First sleep is required because bash doesn't have a "post-test" syntax (do XXX while).

Capture screen and mic input using FFmpeg and ALSA
Yet another x11grab using ffmpeg. I also added mic input to the capturing video stream using alsa. Yet I need to find out how to capture audio which is currently playing.

Detach a process from the current shell
Continue to execute the command in background even though quitting the shell.

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"

check open ports without netstat or lsof

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