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How can I write a I/O bound C program?

I must write programs that are I/O Bound and that will make my I/O scheduler work like never done before for a Operating Systems homework, but I have no idea how to do it. I’ve tried writing a simple C program that counts the lines of big text files, but it executes too fast and I can’t measure th…

Ifconfig and route command on Android

I wondering whether exist way to get result of ifconfig and route commands result programmatically in Android device? Can I do this in non rooted device? Answer In your AndroidManifest.xml file Your code: Output You can’t reach to know whether you are connected via wifi or network using WifiManager as W…

Extract class names from JAR with special formatting

How would I extract all the available classes from a Jar file and dump the output, after some simple processing, to a txt file. For example, if I run jar tf commons-math3-3.1.6.jar a subset of the output would be: I would like to convert all / to . And all $ to . Finally I would also like to remove

How to get Linux command location in C?

I am using execv in C, but it demands to get the path of the command to get it executed, For example: To execute ls I must have char* command = “/bin/ls”; To execute gedit I must have char* command = “/usr/bin/gedit”; My question is how to get the string “/bin” or “/u…

Serial Numbers from a Storage Controller over SSH

Background I’m working on a bash script to pull serial numbers and part numbers from all the devices in a server rack, my goal is to be able to run a single script (inventory.sh) and walk away while it generates text files containing the information I need. I’m using bash for maximum compatibility…