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IP ADDRESS CLASSES

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UNIX/LINUX COMMAND

Unix / Linux Command cat  --- for creating and displaying short files chmod  --- change permissions cd  --- change directory cp  --- for copying files date  --- display date echo  --- echo argument ftp  --- connect to a remote machine to download or upload files grep  --- search file head  --- display first part of file ls  --- see what files you have lpr  --- standard print command (see also  print  ) more  --- use to read files mkdir  --- create directory mv  --- for moving and renaming files ncftp  --- especially good for downloading files via anonymous  ftp . print  --- custom print command (see also  lpr  ) pwd  --- find out what directory you are in rm  --- remove a file rmdir  --- remove directory rsh  --- remote shell setenv  --- set an environment variable sort  --- sort file tail  --- display last part of file ta...
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COMPARISON AMONG OS:

Operating systems are generally not hardware dependent, but the hardware configurations required to use them can vary. Based on their features, these operating systems can be compared in the following ways: MS-DOS Microsoft Windows UNIX and Sun Solaris Linux Novell NetWare Apple Macintosh MS-DOS The MS-DOS operating system is a Microsoft product designed for IBM-compatible computers. The first version of DOS, MS-DOS v1.0 released in 1981, was a simplistic version of the operating system. From then onwards, various updated and sophisticated versions of DOS have been released. MS-DOS is a popular CUI-based operating system. FEATURES: It is a 16-bit operating system, which means that it can send or receive 16 bits of information to the microprocessor for processing 16 bits of data. It is a single-user and single-tasking operating system. It is easy to load and install. DISADVANTAGES: It is a command-line operating system, which means that you have to enter singl...
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