How to create hidden files in UNIX?

kranth.pothuganti

 Profile Answers by kranth.pothuganti Questions by kranth.pothuganti

• Aug 19th, 2009

Unix will treat all the files whose names start with a '.' as hidden.So you can prevent your files from getting listed by LS command by changing it's name such that it starts with a '.'

walstib

 Profile Answers by walstib Questions by walstib

• Aug 7th, 2009

Create the file with a . as the first character in the filename. 

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What is the function of resource allocator in Operating System?

kranth.pothuganti

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• Aug 19th, 2009

Resource allocator is a module of the operating system that is used to assign the resources to the processes that reqoested those resources in an economical way so that the utilization of resources is optimal.

vimalat

 Profile Answers by vimalat Questions by vimalat

• Jul 28th, 2009

Resource allocator is used to assign the available resource in a economic way. It is a part of the resource management.

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Is it possible to implement trees using arrays ? If yes, how?

Vishesh Bibhay

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• Jul 9th, 2011

Hello A complete binary tree can be represented in an array

hrshksh

 Profile Answers by hrshksh Questions by hrshksh

• May 9th, 2010

This questions is ambigious. There are a lot of differences between a tree, k ordered tree, binary tree. There is no harm for any implementation to have array or list as the desired mode of implementa...

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kranth.pothuganti

 Profile Answers by kranth.pothuganti Questions by kranth.pothuganti

• Sep 15th, 2009

There are many advantages with database approach compared to a flat file system. Some of them are: 1) It's not possible to implement relationships between files in filesystem.2) Controlled redundancy...

gurjot911

 Profile Answers by gurjot911 Questions by gurjot911

• Mar 5th, 2009

A flat file is a kind of approach to a database system. I think the question should have been advantages of relational system on a flat file system.In that case it would be straight forward as a relat...

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Dinesh Rajput

• May 19th, 2015

It is dedicated to single work
Time sensitive
Deterministic
Scalable
Less interrupt latency
Cant use virtual memory concept

dikshith

• Oct 21st, 2013

GPOS

1.It is used in multiuser environment
2.protected memory model
3.non scalable
4.high interrupt latency
5.time insensitive

RTOS

1.it is dedicated to a single work
2.flat memory model
3.scalable
4.low interrupt latency
5.time sensitive

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