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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 the computer by entering instructions as text for a command line interpreter to run or by creating text scripts of one or more such instructions.
The most influential Unix shells have been the C shell and the Bourne shell. The Bourne shell, sh, was prepared by Stephen Bourne at AT&T as the general Unix command line interpreter; it produced the basic features common to all the Unix shells, adding piping, here documents, variables, command substitution, control structures for condition-testing and filename wildcarding and looping. The language, adding the use of a declared keyword to use the end of a block, was added by ALGOL 68.
Question: (a) Red Hat Linux is distributed under the Open Source agreement. Explain what you understand by Open Source distribution system. (b) Write a short note on the L
What is busy waiting? The repeated implementation of a loop of code while waiting for an event to happen is known as busy-waiting. The CPU is not engaged in any actual producti
Consider a large web-based database. In some sense, Google is sort of like this. There might be many users who want to read from the database, but only a few users who are allowed
explain about design issues of network operating system
The procedure for handling the page fault is as follows 1. We check the internal table to verify whether the reference was valid or invalid. 2. If the reference was invalid,
we need an information about the different graph directory systems in detail by using shell sort . we also application part of directory systems in practical life. please help us i
What is a file? A file is a named collection of related information that is recorded on secondary storage. A file having either programs or data. A file has particular "structu
Is disk scheduling, other than FCFS scheduling, useful in a single-user environment? Explain your answer. In a single-user environment, the I/O queue usually is blank. Requests
Grouping Threads That Execute Similar Functions Thread Groups are generally used to group threads that execute similar functions of the application program. For instance, if
Explain Process scheduling Process scheduling consists of the subsequent sub-functions: 1. Scheduling : Selects the process to be implement next on the CPU 2. D
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