commandlinefu.com is the place to record those command-line gems that you return to again and again.
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Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:
Gets the latest podcast show from from your favorite Podcast. Uses curl and xmlstarlet.
Make sure you change out the items between brackets.
Ever wanted to stream your favorite podcast across the network, well now you can.
This command will parse the iTunes enabled podcast and stream the latest episode across the network through ssh encryption.
Grab a list of MP3s (with full path) out of Firefox's cache
Ever gone to a site that has an MP3 embedded into a pesky flash player, but no download link? Well, this one-liner will yank the *full path* of those tunes straight out of FF's cache in a clean list.
Shorter and Intuitive version of the command submitted by (TuxOtaku)
Ever gone to a site that has an MP3 embedded into a pesky flash player, but no download link? Well, this one-liner will yank the names of those tunes straight out of FF's cache in a nice, easy to read list. What you do with them after that is *ahem* no concern of mine. ;)
This normalizes volume in your mp3 library, but uses mp3gain's "album" mode. This applies a gain change to all files from each directory (which are presumed to be from the same album) - so their volume relative to one another is changed, while the average album volume is normalized. This is done because if one track from an album is quieter or louder than the others, it was probably meant to be that way.
if you haven't already done so, install lame and flac:
sudo apt-get install lame flac
Renames duplicates from MusicBrainz Picard, so you get the latest copy and not a bunch of duplicates.
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.
Execute this in the root of your music library and this recurses through the directories and normalizes each folder containing mp3s as a batch. This assumes those folders hold an album each. The command "normalize-audio" may go by "normalize" on some systems.
Rips DVD to lossless encoded video file. Reencodes audio to CBR MP3 for correct audio to video syncing. Be sure to have enough free disk space.
This uses mpg123 to convert the files to wav before burning, but you can use mplayer or mencoder or ffmpeg or lame with the --decode option, or whatever you like.
Rip DVD to YouTube ready AVI file, using MPEG-4 video codec and MP3 audio codec. Resizes to 320x240 and deinterlaces as needed.
record audio notes or meetings
requires arecord and lame
run mp3gain on the resulting file to increase the volume / quality
ctrl-c to stop recording
Create subtitle file heading.ssa with just one entry for the entire video duration. Command line sets that entry's text on top of the video as text watermark. If text is an URL works nice for sending people back to your site from a YouTube clip. Output file is lossless encoded and suitable for further processing. Subtitle file can be a URL so it's saved remotely.
Record audio to an MP3 file via ALSA. Adjust -i argument according to arecord -l output.
Record audio to MP3 stream and video to MPEG-4 stream from webcam to AVI file using mencoder. Gives floating point exception in some mencoder versions.
Record from a webcam, audio using ALSA encoded as MP3, video as MPEG-4.
Extracts an MP3 encoded audio stream from an input video file.
Creates a new video file with video stream copied from input file and a different audio stream
Gives MPEG-4/DivX output video file ready for uploading to YouTube from FLV file downloaded from the site and your own subtitle file UTF-8 encoded. No resizing needed. (?)
Converts all ogg files to mp3 files in the current directory.
This will mv all your mp3 files in the current directory to $ARTIST/$ALBUM/$NAME.mp3
Make sure not to use sudo - as some weird things can happen if the mp3 file doesn't have id3 tags.
The quality ranges between 0 to 9, with the smaller number indicates a higher quality file but bigger too.