Commands by vkolev (2)

  • It's made for a script use, where you have 3 parameters: 1. parameter is the filename 2. (optional) the encoding for subtitles 3. (optional) the scaling of the video, since fullscreen doesn't mean that the video will be scaled.


    -1
    mplayer -vo fbdev $1 -fs -subcp ${2:-cp1251} -vf scale=${3:-1280:720}
    vkolev · 2011-03-04 00:55:55 3
  • When recording screencast some people like to have the image from their webcam, so the can show something, that can't be seen on the desktop. So starting mplayer with these parameters you will have a window with no frames, borders whatsoever, and selecting the window a hitting the "F" key you will bring it in fullscreen. if you want to position the frame somewhere else, you could play with the --geomeptry option where 100%:100% mean bottom right corner. The HEIGHT and WIDTH can't be changed as you like, since the most webcams support specified dimensions, so you would have to play with it to see what is supported


    7
    mplayer -cache 128 -tv driver=v4l2:width=176:height=177 -vo xv tv:// -noborder -geometry "95%:93%" -ontop
    vkolev · 2010-11-21 00:08:44 4

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

Check SSH public and private keys matching
Tested in bash4

Gentoo: Get the size of all installed packets, sorted
On a Gentoo system, this command will tell you which packets you have installed and sort them by how much space they consume. Good for finding out space-hogs when tidying up disk space.

Create and access directory at the same time
The previous alternative dont work (the cd command was missing).

show how many regex you use in your vim today
i want to count how many regex code i have used in vim in a long time so i make a directory in svn host and post record to this directory of course i dont want to post manually so i worte a script to do that and this is the core thing to do

Get just the IP for a hostname

Find usb device in realtime
Using this command you can track a moment when usb device was attached.

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"

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

See system users

Pretty man pages under X


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: