How can you get/set an environment variable from a program?
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What is dev null in unix?
What is unix inode?
What is a shell?
What does tr H do in unix?
What scheme does the Kernel in Unix System V follow while choosing a swap device among the multiple swap devices?
How to get the nth word of a line in Unix?
What Happens when you execute a program?
How does the kernel differentiate device files and ordinary files?
What are the devices represented in unix?
What are the main features of unix operating system?
How to calculate the number of words in a file?
Does unix still exist?