I have two different USB devices based on the same USB-RS232 chips. When I plug those in the USB they are mounted to /dev/ttyUSB0…3 My problem is how, inside a script, I can find out which one is on what tty? Using lsusb I can differentiate them: And using dmesg I can tell where they were mounted: But “usb 4-1”
cURL Simple File Upload – 417 Expectation Failed
I have a problem with a simple file upload post with cURL… I did it so many times but in this case I always get “417 Expectation Failed” from server. When I try to post with my browser it works 100% but with cURL not. That’s my configuration: My simple test form that works: here the image_upload.php: my cURL script
Run Another Program in Linux from a C++ Program
Okay so my question is this. Say I have a simple C++ code: Now say I have this program that I would like to run in my program, call it prog. Running this in the terminal could be done by: Is there a way to just do this from my simple C++ program? For instance Any feedback would be very
Why do I get permission denied when I try use “make” to install something?
I’m trying to install something and it’s throwing me an error: Permission denied when I try to run make on it. I’m not too fond of the universal rules of unix/linux and not too fond of user rights either. My best guess is that the user I’m logged in as does not have the privileges to run make commands, but
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I’m writing a function, which, given an argument, will either redirect the stdout to a file or read the stdin from a file. To do this I close the file descriptor associated with the stdout or stdin, so that when I open the file it opens under the descriptor that I just closed. This works, but the problem is that
Need a simple Linux C++ IDE (Android NDK) [closed]
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. We don’t allow questions seeking recommendations for books, tools, software libraries, and more. You can edit the question so it can be answered with facts and citations. Closed 2 years ago. Improve this question I need an IDE that must: allow running the ~/android-ndk-r7/ndk-build script
How to change a word in a file with linux shell script
I have a text file which have lots of lines I have a line in it which is: MyCar on how can I turn my car off? Answer You could use sed:
How to convert m4v and wmv videos to mp4 format using ffmpeg?
I am using ffmpeg to convert videos to mp4 in my PHPMotion project. I am not able to convert wmv and m4v video to mp4 format. I’ve pasted the command that I used to convert wmv and m4v: When I use this codes, i got an error message: How can I solve this issue? Answer For those who still find
Is XCB ready for production use? Should I use Xlib instead?
If one needs low level access to X11 events, windowing and input without using GTK, QT et al., should one use Xlib or XCB? What are the pros and cons of each? Answer You can use both of them. XCB is simpler to use, has a better response to a multithread environment but lacks documentation, while Xlib is a more
CentOS: Enabling GD Support in PHP Installation
How do I go about enabling GD Support in a CentOS Installation? Answer The thing that did the trick for me eventually was: and then restart apache: