Features of UNIX/LINUX

Linux Features

Multiuser: A multi-user Operating system allows more than one user to share the same computer system at the same time.

Multi-Tasking: More than one program can be run at a time. The main concept of multitasking is maximum utilizing CPU resources

Open System: The UNIX is open source code i.e Any user can modify Unix open-source code according to their ideas and requirements

• Using UNIX open source codeSun Micro Systems+ Adding additional features =Sun SalariesIBM+Adding additional feature  =  IBM-AIXHP+Adding additional feature= HP=UXSunta Curuz + Adding additional feature= SCO-UnixSilicon Graphics   +Adding additional feature=   IRIXMicro Soft+Adding additional feature  =    xenix
• Any operating system developed based on UNIX open-source code known as flavours of UNIX
• The Linux was given to GPL (General Public License) Organized by GNU.
• Linux Torvalds, who was then a student at the University of Helsinki in fin land, developed Linux in 1991. Linux is also an open system

Distributors of Linux

• Red Hat
• Suse
• Ubuntu
• Puppy
• Slackware
• Centos
• OEL
• Fedora
• White box
• Mandrake

Do you want to master Linux? Then enrol in "Linux Training" This course will help you to master Linux

Security: One of the most valued advantages of Linux over the other platforms lies with the high-security levels it ensures. Every Linux user is happy to work in a virus-Free environment and use the regular virus prevention time needed when working with other operating systems for another more important task.

UNIX/LINUX has given two levels of securities.

• System-level Security: It's controlled by the system administrator.
• File-level Security: It's controlled by the owner of the file.

Portability: Portability means Independent of hardware & processors

Communication: The main concept of communication facility Exchanging of information or files from one user account to another user account.

Programming Facility: UNIX o/s provides shell. Shell works like a programming language. It provides commands and keywords.

Help facility: It is a beautiful feature of UNIX/ LINUX Operating systems. Don’t know the information about the given command just go through the helpline.

Example:                    

#Man <command name>

(or)

­­­­ #info <Command name>

(or)

#<command name> --help

Linux Interview Questions

For an in-depth understanding of Linux click on

• Architecture of O/S
• UNIX Introduction
• Basic commands
• User Administration