What is the equivalent (programmatically) of cat /dev/something > file.txt
I'm copying a video from a camera stream using a command cat /dev/video0 > file.mpeg
This works perfectly, however I want too break up the file into smaller chunks... So I've been waiting pressing Ctrl+C.. Wanted to automate that so created a batch script that will wait X minutes then halt the job, meanwhile show a progress bar. Works great however I want to take it another step.. I have an XML file that contains the exact times and file names, I have a mono program that parses this file.
Here's the question.. How can I programmatically run this cat command. Sure I could execute a system command. But I was thinking of just doing the entire application in the same language. I can open a file to write as a binary write and read say 1000 bytes at a time... But what is cat doing? Does it know how much/ how fast to read somehow?
cat io
edited 2 mins ago
Jeff Schaller
39.5k1054126
asked 7 mins ago
user1529413user1529413
113
add a comment |
I'm copying a video from a camera stream using a command cat /dev/video0 > file.mpeg
This works perfectly, however I want too break up the file into smaller chunks... So I've been waiting pressing Ctrl+C.. Wanted to automate that so created a batch script that will wait X minutes then halt the job, meanwhile show a progress bar. Works great however I want to take it another step.. I have an XML file that contains the exact times and file names, I have a mono program that parses this file.
Here's the question.. How can I programmatically run this cat command. Sure I could execute a system command. But I was thinking of just doing the entire application in the same language. I can open a file to write as a binary write and read say 1000 bytes at a time... But what is cat doing? Does it know how much/ how fast to read somehow?
cat io
edited 2 mins ago
Jeff Schaller
39.5k1054126
asked 7 mins ago
user1529413user1529413
113
add a comment |
I'm copying a video from a camera stream using a command cat /dev/video0 > file.mpeg
This works perfectly, however I want too break up the file into smaller chunks... So I've been waiting pressing Ctrl+C.. Wanted to automate that so created a batch script that will wait X minutes then halt the job, meanwhile show a progress bar. Works great however I want to take it another step.. I have an XML file that contains the exact times and file names, I have a mono program that parses this file.
Here's the question.. How can I programmatically run this cat command. Sure I could execute a system command. But I was thinking of just doing the entire application in the same language. I can open a file to write as a binary write and read say 1000 bytes at a time... But what is cat doing? Does it know how much/ how fast to read somehow?
cat io
edited 2 mins ago
Jeff Schaller
39.5k1054126
asked 7 mins ago
user1529413user1529413
113
I'm copying a video from a camera stream using a command cat /dev/video0 > file.mpeg
This works perfectly, however I want too break up the file into smaller chunks... So I've been waiting pressing Ctrl+C.. Wanted to automate that so created a batch script that will wait X minutes then halt the job, meanwhile show a progress bar. Works great however I want to take it another step.. I have an XML file that contains the exact times and file names, I have a mono program that parses this file.
Here's the question.. How can I programmatically run this cat command. Sure I could execute a system command. But I was thinking of just doing the entire application in the same language. I can open a file to write as a binary write and read say 1000 bytes at a time... But what is cat doing? Does it know how much/ how fast to read somehow?
cat io
cat io
edited 2 mins ago
Jeff Schaller
39.5k1054126
asked 7 mins ago
user1529413user1529413
113
edited 2 mins ago
Jeff Schaller
39.5k1054126
asked 7 mins ago
user1529413user1529413
113
edited 2 mins ago
Jeff Schaller
39.5k1054126
edited 2 mins ago
Jeff Schaller
39.5k1054126
edited 2 mins ago
Jeff Schaller
39.5k1054126
39.5k1054126
asked 7 mins ago
user1529413user1529413
113
asked 7 mins ago
user1529413user1529413
113
asked 7 mins ago
user1529413user1529413
113
113
add a comment |
add a comment |
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