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5
votes
1answer
57 views

How many ways does Unix feign files?

I know Unix filesystem sometimes has things that appear to be files but are not actually files. The files in dev actually point to devices. Its also possible to created named pipes which also appear ...
2
votes
2answers
411 views

Keeping bash open on a named pipe

I'm looking to send commands to a separate tmux pane from vim and I figured the easiest way was to mkfifo a named pipe /tmp/cmds and run bash < /tmp/cmds to listen for commands to run. I then do ...
1
vote
1answer
216 views

How do I feed FFMPEG with JPEG images via Named Pipe?

Normally you can feed FFMPEG with images from the file system using -f image2, but this doesn't work when you have a named pipe as input: FFMPEG complatins that "index in the range 0-4" could not be ...
2
votes
2answers
320 views

Linux job queue for FFmpeg conversion

I'm starting up a Debian web server which will host a website where users can upload video files and play them. Hence, the video files need to be converted into the proper format (mp4, ogg, webm) for ...
2
votes
2answers
8k views

In windows, can I redirect stdout to a (named) pipe in command line?

Is there a way to redirect the standard output of a process in Win32 console to a named pipe? Named pipes are built in to Windows and while they would be an useful concept, I've never seen them used ...
0
votes
1answer
163 views

update terminal title from standard output of long running command?

I'd like to change the title of a terminal window during a long running command (for example: git svn fetch) with values greped from the output, whilst still writing to standard output. Is this ...
2
votes
2answers
781 views

Use netcat as a proxy to log traffic

I want to use netcat as a proxy to log http requests and responses to files, then tail these to inspect traffic. Think wireshark. Tried the following where 'fifo' is a named pipe, 'in' and 'out' are ...
1
vote
0answers
769 views

Using a named pipe to simulate a serial port on a VMware virtual machine (linux host and client)

Trying to write a python program to create a simulated data stream and feed it, through a named pipe, to a VMware virtual machine. The host is running Ubuntu 11.10 and VMware player 5.0.0. The Vm is ...
2
votes
1answer
2k views

IO redirection with mkpipe for logging purposes

I have a bunch of scripts that send output to stdout. I am redirecting the output to files, but these files get large very very quickly. For example: ./script_with_lots_of_outpu.sh 2>&1 ...
2
votes
1answer
185 views

how to convert a script using pipelines to named pipes

I have a bash script that is using anonymous pipes to achieve: grabbing video from dv capture device writing to a file (using tee) piping it to ffmpeg2theora (converting to ogv/theora video) writing ...
2
votes
1answer
1k views

How long do FIFOs (named pipes) stay “open” for?

For example, I have a script that writes the time to a pipe in /etc/pipe. It writes continuously in a while true loop. How long will the data in the pipe be available for reading? If I only decide to ...