Introduction

529 views

Published on

Published in: Education
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
529
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Introduction

  1. 1. INTRODUCTION TO UNIX(UNIPLEXED INFORMATION AND COMPUTING SYSTEM)PRESENTED BY:VINEET BHALLASHAFALI SHARMA<br />
  2. 2. WHAT IS OPERATING SYSTEM?<br />IT IS A COMPUTER PROGRAM THAT MANAGES THE COMPUTER RESOURCES.<br /> IT IS A PROGRAM THAT ACT AS A INTERFACE BETWEEN USER AND COMPUTER HARDWARE.<br />
  3. 3. DEFINITION OF UNIX<br />IT IS A COMMON OPERATING SYSTEM MADE UP OF THREE PARTS:<br />1.THE KERNEL<br />2.THE SHELL <br />3.THE PROGRAMS<br />
  4. 4. HISTORY<br />KEN THOMPSON AND DENNIS RITCHIE DEVELOP A UNIVERSAL COMPUTING SYSTEM IN WHICH COMPUTER CODE COULD BE PRODUCED AND IS PORTABLE.<br />
  5. 5. FILES AND PROCESSES<br />EVERYTHING IN UNIX IS EITHER A FILE OR PROCESS.<br />A PROCESS IS AN EXECUTING PROGRAM IDENTIFIED BY A UNIQUE PID (process identifier).<br />A FILE IS A COLLECTION OF DATA .THEY ARE CREATED BY USERS USING TEXT EDITORS ETC.<br />
  6. 6. REDIRECTION(input ,output and pipes).<br />MANY PROCESSES INITIATED BY UNIX COMMANDS:<br /><ul><li>WRITE to the standard output
  7. 7. Take their input from the standard input.</li></ul>THE > SYMBOL<br />THE >> SYMBOL<br />THE | SYMBOL (PIPE).<br />
  8. 8. UNIX COMMANDS<br /><ul><li>date : show date and time
  9. 9. man:show online documentation by program name.
  10. 10. uptime: show online summary of system status.
  11. 11. cat: combine files.
  12. 12. diff: compare two files and show their differences.
  13. 13. cd: change to new directory.
  14. 14. pwd: show current directory.</li></li></ul><li>Thanking you<br />

×