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Command Line Interface. History. IBM 8086 processor What did they do? O utsourced to a small company. Bill Gates. Purchased an OS QDOS (Quick and dirty operating system) Fixed it MS-DOS = Microsoft Disk Operating System. MS-DOS. Operating system using MS DOS MS DOS 1.1 – Windows 7
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History • IBM • 8086 processor • What did they do? • Outsourced to a small company
Bill Gates • Purchased an OS • QDOS (Quick and dirty operating system) • Fixed it • MS-DOS =Microsoft Disk Operating System
MS-DOS • Operating system using MS DOS • MS DOS 1.1 – Windows 7 • Vista & Windows 7 • PowerShell
Command line • Why do we still use command line? • Major configuration • OS compatibility • You can configure faster • Remote trouble shooting takes less bandwidth
DOS • How does DOS work? • It works like a conversation. • Example: • Computer: Want to watch a movie? • User: A good one • How do you access CMD?
Filename limitations • Old standard (true dos) • Only 8 character long • New Standard • 255 character limitation • Using LFN= Long file name • Vista -Windows 7 • 260 Character limitation
Illegal characters in a file name • What is an illegal character? • * " / \ | [ ] : ; = , • Why do we have illegal characters? • Programming • File path name (C:\Users\Administrator\AppData\)
File Extensions • What is a file extension? • Examples: • .BAT .HTML .doc. docx .ppt .pptx • What does it do? • Let’s you identify the file with a program in windows
File extension limitations • Old standard (true dos) • 3 characters • New standard • Same as file name limitations but…