I want to cat a /dev/video0 device output (Transport Stream) into a temporary ring buffer. In fact i do not want that the file is growing over the time. Simultaneously access is not possible. So the purpose is to have a file (buffer, Fifo, whatever) to be accessed by more than one consumer (example: tail -f, mencoder, VLC, ....). Some kind of scenario: 1# cat /dev/video0 > mybuffer.ts And then multiple access 2# tail -f mybuffer.ts > extract1.ts 2# tail -f mybuffer.ts > extract2.ts 3# ffmpeg ... Does someone have an idea how to do something like this?