Commands by vigo (5)

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Edit a file inside a compressed archive without extracting it
If you vim a compressed file it will list all archive content, then you can pickup any of them for editing and saving. There you have the modified archive without any extra step. It supports many file types such as tar.gz, tgz, zip, etc.

find an unused unprivileged TCP port
Some commands (such as netcat) have a port option but how can you know which ports are unused?

Create commands to download all of your Picasaweb albums
Create commands to download all of your Picasaweb albums Install Googlecl (http://code.google.com/p/googlecl/) and authenticate first.

How to trim a video using ffmpeg
Will trim the video to 4 seconds starting from the beginning. The -vcodec , -acodec options are required so that ffmpeg knows in what video/audio format you want for the new video.

Combines an arbitrary number of transparent png files into one file
This one liner; combines all sequentially numbered files; in this example IMG_0001.png to IMG_1121.png by generating the shell script, making the shell script executable and then running the shell script to combine the 1121 png into a single png file named _final.png tested on Mac OS X 10.6.3 with ImageMagick 6.5.8-0 2009-11-22 Q16 http://www.imagemagick.org

Check general system error on AIX
Check general system error on AIX

Install pip with Proxy
Installs pip packages defining a proxy

Limit the transfer rate and size of data over a pipe
This example will close the pipe after transferring 100MB at a speed of 3MB per second.

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

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