Shell scripting, A friend has promised to log in at a particular time. Howe...

A friend has promised to log in at a particular time. However, he needs to be contacted as soon as he logs in. The shell script checks after every minute whether he has logged in o

All the explanations of operating system and its types., operating systems ...

operating systems and its types together with its design issues and their examples.

Define shell in unix system, A Unix shell is a shell or command-line inte...

A Unix shell is a shell or command-line interpreter that gives a traditional user interface for the Unix-likesystems and for Unix operating system. Users operates the operation of

What operating system do, a summary of what operating system do

a summary of what operating system do

Explanation of computer clustering and benefits, The CTO is still impressed...

The CTO is still impressed with your work. He just came back from a technology exposition where he heard about computer clusters. All he knows is that they are the big thing for bu

Buffering,

What are the advantages of linked allocation, What are the advantages of Li...

What are the advantages of Linked allocation? The benefits are a. No external fragmentation b. Size of the file does not require to be declared

Mechanism for code and data sharing, Q. Consider a system in which a progr...

Q. Consider a system in which a program is able to be separated into two parts: code and data. The CPU recognizes whether it wants an instruction (instruction fetch) or data (data

Batch system, what is a batch system give me answer in simple words so that...

what is a batch system give me answer in simple words so that i can understand

Write a note about directory structure with examples., Write a note about ...

Write a note about Directory structure with examples. The FreeBSD directory hierarchy is basic to obtaining an overall understanding of the system. The most significan