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UNIX Knowledge for Software Testers

http://www.gcreddy.com/2010/10/test-e... UNIX Knowledge for Software Testers 1. What is Operating System? 2. Types of Operating Systems 3. What is UNIX? 4. Types of UNIX/Favours of UNIX 5. Features of UNIX 6. Important UNIX Commands 1. What is Operating System? An Operating System is Software that runs on a Computer, It manages the computer's memory and Processes as well as all of its Hardware and Software. 2. Types of Operating Systems i. Single User and Single Task OS EX: DOS - CUI ii. Single User and Multi Task OS Ex: MS Windows - GUI + CUI iii. Multi User and Multiple Task OS Ex: UNIX - CUI + GUI Linux - GUI + CUI 3. What is UNIX? UNIX is an Operating System which was first developed in the 1960's, and has been under constant development ever since. 4. Types of UNIX/Favours of UNIX There are many different versions of UNIX, although they share common similarities. The Most popular varieties of UNIX are Sun Solaris, Linux, and MacOS X.... 5. Features of UNIX: . Multi user - More than one user can use the machinne . Multi tasking - More than one program can be run at a time . Porability - This means the operating system can be easily converted to run on different browsers... 6. Important UNIX Commands Command Example Description 1. ls ls List Files in current directory 2. cd cd abcd Change directory to abcd 3. mkdir mkdir gcreddy Makes a directory called gcreddy 4. rmdir rmdir xyza Removes a directory (must be empty. 5. cp cp file1 file2 Copy File into directory 6. rm rm file1.bak Remove or Delete File 7. mv mv old.html new.html Move or Rename File 8. lpr lpr index.html Send File to Printer... 9. man man ls Online Manual (Help. about command