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UNIX/LINUX TESTING

UNIX & LINUX

Unix/Linux are command line operating systems used on servers, work stations and mobile devices. They are mainly applicable for client server model based software systems. Servers are huge systems that have huge memory, high speed, multiuser and network visibility. Hence servers require an efficient operating systems. Unix/linux are command line efficient operating systems that can be used to manage the servers.

UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. It has some time – sharing configurations. It is considered as a

It has characteristics like:

  • Usage of plain text for data storage
  • Hierarchical file system
  • Handling devices and some specific some kinds of inter-process communication
  • Employing a huge number of software tools
  • Multiple small, simpler and modular programs which can be threaded together.

The master control program of UNIX is kernel and the kernel has full control over the entire system. It is having a subsystem that has services to file system handling, memory management, and start and stop programs.

Linux is a command line operating system which is derived from Unix and is a continuation of unix. Its distribution are very popular and healthiest. Linux is just a kernel and not a completely developed operating system. Most of the software in Linux distribution is free and open source. The square brackets are used to defined the condition for test command. For example, to test the UNIX or Linux shell command. If the file is specified by first positional parameter of shell procedure $1 doesn’t exists or is of size zero, the test command displays the message. If $1 exists and has size zero test command displays nothing. The shell procedure is given a few or two positional parameters or file specified by $1 doesn’t exists, than the shell procedure exists. If $1 exists has a size greater than 0 the test command displays nothing. Unlike Unix, the Linux test command checks the file types and compares all the values.

Everything in UNIX or Linux is either a file or process. A process is a executing program identified by the unique code called PID- process identifier. A file is a collection of data. They all are created by users using text editors, running compilers etc.

Questions

  1. What is the difference between UNIX and Linux operating system?
  2. How testing is done for Unix/Linux operating system.
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  1. 1. What is the difference between UNIX and Linux operating system?
    UNIX is a command line operating system, which features some of the following capabilities: multitasking, portability, and multi-user computing. Linux is a command line operating system which is derived from Unix and is a continuation of Unix. Linux is not a fully developed operating system. Unix and Linux are both command line efficient operating systems that can be used to manage the servers.
    2. How is testing done for Unix/Linux operating system?
    The square brackets are used to defined the condition for test command.
    Unlike Unix, the Linux test command checks the file types and compares all the values.

  2. Unix Operating system is a command line operating system which is multi tasking, portable ,multi user command operating system where as linux operating systems is a continuation of unix operating system . Both are used for server based model. servers are huge storage which ensures high speed, multi tasking,ect.
    The master control program of unix is a kernel which has total control over the system where as linux is also a kernel but not a completely developed operating system.
    Unlike Unix, the Linux test command checks the file types and compares all the values.

  3. Unix/Linux: Unix/Linux are command line efficient operating systems that can be used to manage the servers.
    Difference: UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. UNIX is kernel and the kernel has full control over the entire system. It is having a subsystem that has services to file system handling, memory management, and start and stop programs.
    Linux: is derived from Unix and is a continuation of unix. Linux is just a kernel and not a completely developed operating system. Most of the software in Linux distribution is free and open source.
    Testing on Unix and Linux operating systems is done through commands.

  4. Unix is a command line operating systems used on servers, work stations and mobile devices. They are mainly applicable for client server model based software systems.
    Linux is basically derived from Unix and is a continuation of Unix. Its distribution are very popular and healthiest. Linux is just a kernel and not a completely developed operating system.
    Everything in UNIX or Linux is either a file or process. A process is a executing program identified by the unique code called PID- process identifier. A file is a collection of data. They all are created by users using text editors, running compilers etc.

  5. What is the difference between UNIX and Linux operating system?
    The primary difference is that Linux and Unix are two different Operating Systems though they both have some common commands.Linux primarily uses Graphical User Interface with an optional Command Line Interface. Unix primarily uses Command Line Interface.Linux OS is portable and can be executed in different Hard Drive. where as, Unix is not portable.Linux is more famous than Unix but Unix has its own users. While Linux is an open source, free to use operating system widely used in Home Based PC, Mobile Phones, Desktops, etc. , Unix is a proprietary operating system commonly used on large server systems, mainframes, expensive and high-end computer systems at big MNCs and institutions.
    How testing is done for Unix/Linux operating system?
    Testing on Unix/Linux operating system is done through commands.

  6. Unix/Linux are command line operating systems used on servers, work stations and mobile devices. They are mainly applicable for client server model based software systems. Servers are huge systems that have huge memory, high speed, multiuser and network visibility. Hence servers require an efficient operating systems. Unix/linux are command line efficient operating systems that can be used to manage the servers.
    UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system.

  7. he primary difference is that Linux and Unix are two different Operating Systems though they both have some common commands.
    Let’s talk about Linux OS first.
    The source code of Linux is freely available to it’s users. Check it out here.
    Linux primarily uses Graphical User Interface with an optional Command Line Interface.
    Linux OS is portable and can be executed in different hard drives.
    Linux is very flexible and can be installed on most of the home based PCs.
    Linux is used on home based PCs, Mobile Phones, Desktops, etc.The square brackets are used to defined the condition for test command.
    Unlike Unix, the Linux test command checks the file types and compares all the values.
    Different version of Linux are Ubuntu, Linux Mint, RedHat, Solaris, etc.
    Linux installation is economical and doesn’t require much specific and high end hardware.
    Now comes the UNIX OS.
    The source code of Unix is not available for the general public.
    Unix primarily uses Command Line Interface.
    Unix is not portable.
    Unix has a rigid environment of the hardware. Hence, cannot be installed on every other machine.
    Unix is mainly used in Server Systems, Mainframes and High End Computers.
    Different Versions of Unix are AIS, HP-UX, BSD, Iris, etc.
    Unix installation is comparatively costlier as it requires more specific hardware circuitry.
    Unix is developed by AT&T Developers.
    2. Test is done by using command line in Unix / Linux

  8. Unix/Linux are command line operating systems used on servers, work stations and mobile devices. They are mainly applicable for client server model based software systems. Servers are huge systems that have huge memory, high speed, multiuser and network visibility. Hence servers require an efficient operating systems. Unix/linux are command line efficient operating systems that can be used to manage the servers.

    UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. It has some time – sharing configurations. It is considered as a
    Linux is a command line operating system which is derived from Unix and is a continuation of unix. Its distribution are very popular and healthiest. Linux is just a kernel and not a completely developed operating system.

  9. What is the difference between UNIX and Linux operating system?
    The main difference between Unix and Linux is that Unix is an operating system that
    is most commonly used on the internet, servers, and workstations.
    however, on the other hand, Linux is an open-source that is commonly used for the hardware and software of the computers.

    How testing is done for the Unix/Linux operating system.
    Testing on Unix/Linux operating system is done through the command line.

  10. 1.Difference between UNIX and Linux operating system
    The master control program of UNIX is kernel and the kernel has full control over the entire system. It is having a subsystem that has services to file system handling, memory management, and start and stop programs.
    Linux is a command line operating system which is derived from Unix and is a continuation of unix. Its distribution are very popular and healthiest. Linux is just a kernel and not a completely developed operating system. Most of the software in Linux distribution is free and open source. The square brackets are used to defined the condition for test command.

    2.Everything in UNIX or Linux is either a file or process. A process is a executing program identified by the unique code called PID- process identifier. A file is a collection of data. They all are created by users using text editors, running compilers etc.

  11. 1. What is the difference between UNIX and Linux operating system?
    answer:
    UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. It has some time sharing configurations. whereas Linux is just a kernel and not a completely developed operating system.
    Unlike Unix, the Linux test command checks the file types and compares all the values.
    2. How testing is done for Unix/Linux operating system?
    answer:
    To test the UNIX or Linux shell command. If the file is specified by first positional parameter of shell procedure $1 doesn’t exists or is of size zero, the test command displays the message. If $1 exists and has size zero test command displays nothing. The shell procedure is given a few or two positional parameters or file specified by $1 doesn’t exists, than the shell procedure exists. If $1 exists has a size greater than 0 the test command displays nothing.

  12. 1) difference between UNIX and Linux operating system
    a) linux: open source software development and free operating system , use in p.c, mobile phone, desktop
    b) unix: which can be used by its copyright , used in server system and high end computers.

    2)how testing done for unix and linux operating system?
    Unix/linux are command line efficient operating systems that can be used to manage the servers.

  13. UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system.
    Linux is a command line operating system which is derived from Unix and is a continuation of unix.

    Everything in UNIX or Linux is either a file or process. A process is a executing program identified by the unique code called PID- process identifier. A file is a collection of data. They all are created by users using text editors, running compilers etc.

  14. 1.UNIX is a command-line operating system, which features some of the following capabilities: multitasking, portability, and multi-user computing. Linux is a command-line operating system which is derived from Unix and is a continuation of Unix. Linux is not a fully developed operating system. Unix and Linux are both command line efficient operating systems that can be used to manage the servers
    2. Testing on UNIX operating is done through the command.

  15. A1. Unix and Linux are both command line operating systems. However, the master control program of Unix is kernel and the kernel has full control over the entire system. Whereas, Linux is derived from Unix and is a continuation of Unix.
    A2. Unlike Unix, Linux test command checks the file types and compares all the values.

  16. The primary difference is that Linux and Unix are two different Operating Systems though they both have some common commands. … Linux primarily uses Graphical User Interface with an optional Command Line Interface.
    Linux refers to the kernel of the GNU/Linux operating system. More generally, it refers to the family of derived distributions.
    Unix refers to the original operating system developed by AT&T. More generally, it refers to family of derived operating systems.

  17. 1) UNIX AND LINUX a command-line operating system. The master control program of UNIX is the kernel and the kernel has full control over the entire system. LINUX is derived from UNIX and is a continuation of UNIX. Its distribution is very popular and healthiest. LINUX is just a kernel and not a completely developed operating system. Everything in UNIX or Linux is either a file or process. A process is an executing program identified by the unique code called PID- process identifier. A file is a collection of data.

    2) The square brackets are used to define the condition for the test command. Unlike Unix, the Linux test command checks the file types and compares all the values. UNIX or Linux is either a file or a process. A process is an executing program identified by the unique code called PID- process identifier. A file is a collection of data. They all are created by users using text editors, running compilers.

  18. Unix is an OS where the source code is not available to all where Linux is open source based. Unix and Linux testing are performed using command line arguments and invocation of shell scripts.

  19. What is the difference between UNIX and Linux operating system?
    The primary difference is that Linux and Unix are two different Operating Systems though they both have some common commands.Linux primarily uses Graphical User Interface with an optional Command Line Interface. Unix primarily uses Command Line Interface.Linux OS is portable and can be executed in different Hard Drive. where as, Unix is not portable.Linux is more famous than Unix but Unix has its own users. While Linux is an open source, free to use operating system widely used in Home Based PC, Mobile Phones, Desktops, etc. , Unix is a proprietary operating system commonly used on large server systems, mainframes, expensive and high-end computer systems at big MNCs and institutions.
    How testing is done for Unix/Linux operating system?
    Testing on Unix/Linux operating system is done through commands.

  20. UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system.
    Linux is a command line operating system which is derived from Unix and is a continuation of unix,the master control of Unix is kernel and it has full control over the entire system.

  21. What is the difference between UNIX and Linux operating system?
    UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. Unix/linux are command line efficient operating systems that can be used to manage the servers.Linux is a command line operating system which is derived from Unix and is a continuation of unix. Linux is just a kernel and not a completely developed operating system. Most of the software in Linux distribution is free and open source.
    How testing is done for Unix/Linux operating system?
    Testing in UNIX is done with the help of commands after having a proper testing script.

  22. What is the difference between UNIX and Linux operating system?
    Linux source code is available to the general public whereas, in Unix, the source code is proprietary.
    Linux is a Unix clone,behaves like Unix but doesn’t contain its code. Unix contain a completely different coding developed by AT&T Labs. Linux is just the kernel. Unix is a complete package of Operating system.

    How testing is done for Unix/Linux operating system.
    Unix/Linux are command line efficient operating systems that can be used to manage the servers.

  23. UNIX : The master control program of UNIX is kernel and the kernel has full control over the entire system. It is having a subsystem that has services to file system handling, memory management, and start and stop programs.

    Linux: Linux is a command line operating system Linux is just a kernel and not a completely developed operating system. Most of the software in Linux distribution is free and open source

  24. UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system.
    Linux is a command line operating system which is derived from Unix and is a continuation of Unix. It is assembled under the model of free and open source software.
    How testing is done for Unix/Linux operating system?
    Example: the test command checks file types and compares values. test is used as part of the conditional execution of shell commands.
    Syntax: test expression or [ expression ] {notice the space between and after expression} both the commands produce the same result.
    test 100 -gt 50 && echo “True” || echo “False”
    This command will print the text “True” because 100 is greater than 50.
    Without using test command same thing can be done as below:
    [ 100 -gt 50 ] && echo “True” || echo “False”
    Will print the text “True” because 100 is greater than 50.

  25. Linux is just a kernel and Unix is a completely developed operating system.
    UNIX is a command line operating system which are widely used in servers, workstations and mobile devices.
    Linux is a Unix like computer operating system assembled under the model of free and open source software development and distribution.
    Testing is done by command line. Everything in UNIX or Linux is either a file or process. A process is an executing program identified by the unique code called PID- process identifier. A file is a collection of data. They all are created by users using text editors, running compilers etc.

  26. 1.UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. It has some time – sharing configurations. It is considered as a
    It has characteristics like:
    Usage of plain text for data storage
    Hierarchical file system
    Handling devices and some specific some kinds of inter-process communication
    Employing a huge number of software tools
    Multiple small, simpler and modular programs which can be threaded together.
    LINUX is a command line operating system which is derived from Unix and is a continuation of Unix. Its distribution are very popular and healthiest. Linux is just a kernel and not a completely developed operating system. Most of the software in Linux distribution is free and open source. The square brackets are used to defined the condition for test command
    2.Unix/Linux are command line efficient operating systems that can be used to manage the servers & The square brackets are used to defined the condition for test command

  27. UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. It has some
    time – sharing configurations. Linux is a command line operating system which is derived from Unix and is a continuation of unix. Its distribution are very popular and healthiest. Linux is just a kernel and not a completely developed operating system.
    Everything in UNIX or Linux is either a file or process. A process is a executing program identified by the unique code called PID- process identifier. A file is a collection of data. They all are created by users using text editors, running compilers etc.

  28. Linux is a free and open-source operating system. Unix is a commercial product, offered by a variety of vendors each with its own variant, usually dedicated to its own hardware. It’s expensive and closed source. But Linux and Unix do more or less the same thing in the same way.
    The square brackets are used to defined the condition for test command.
    Unlike Unix, the Linux test command checks the file types and compares all the values.

  29. 1. Both UNIX and Linux are command line operating systems however Linux is a derivation and continuation of UNIX. Linux is also free and open source versus UNIX which is commercial. Linux is a kernel derived from UNIX and is not fully developed as of yet.

    2. Square brackets are used to defined the condition for test command. Unlike Unix, the Linux test command checks the file types and compares all the values. Everything in UNIX or Linux is either a file or process.

  30. 1. What is the difference between UNIX and Linux operating system?
    UNIX and Linux are both OS which earlier had only CLI(command line interface) but now also supports GUI. Unix is a commercial product. UNIX, itself is a complete OS as everything (all required application tied together) comes from a single vendor. It’s expensive and closed source.
    On the other hand, Linux is a open source command line operating system which is derived from Unix and is a continuation of Unix.
    2. How testing is done for Unix/Linux operating system.
    The square brackets are used to define the test commands. Everything is either on a file or a process. We can identify the program through a unique code called PID process identifier.

  31. UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. Linux is a command line operating system which is derived from Unix and is a continuation of unix. Unlike Unix, the Linux test command checks the file types and compares all the values.

  32. 1. What is the difference between UNIX and Linux operating system?
    UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. It has some time – sharing configurations.
    The master control program of UNIX is kernel and the kernel has full control over the entire system. It is having a subsystem that has services to file system handling, memory management, and start and stop programs.
    Linux is a command line operating system which is derived from Unix and is a continuation of Unix. Its distribution is very popular and healthiest. Linux is just a kernel and not a completely developed operating system. Most of the software in Linux distribution is free and open source. The square brackets are used to defined the condition for test command
    2. How testing is done for Unix/Linux operating system?

    To test the UNIX or Linux shell command. If the file is specified by first positional parameter of shell procedure $1 doesn’t exists or is of size zero, the test command displays the message. If $1 exists and has size zero test command displays nothing. The shell procedure is given a few or two positional parameters or file specified by $1 doesn’t exists, then the shell procedure exists. If $1 exists has a size greater than 0 the test command displays nothing. Unlike Unix, the Linux test

  33. Unix/Linux are command line operating systems used on servers, work stations and mobile devices. They are mainly applicable for client server model based software systems. Servers are huge systems that have huge memory, high speed, multiuser and network visibility. Hence servers require an efficient operating systems. Unix/linux are command line efficient operating systems that can be used to manage the servers.

    UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. It has some time – sharing configurations. It is considered as a

  34. 1. What is the difference between UNIX and Linux operating system?
    Unix/Linux are command line operating systems used on servers, work stations and mobile devices. They are mainly applicable for client server model based software systems. Servers are huge systems that have huge memory, high speed, multiuser and network visibility. Hence servers require an efficient operating systems. Unix/linux are command line efficient operating systems that can be used to manage the servers.
    UNIX is a command line operating system which is multitasking, portable, multi-user computer operating system. It has some time – sharing configurations. It is considered as a
    It has characteristics like:
    Usage of plain text for data storage
    Hierarchical file system
    Handling devices and some specific some kinds of inter-process communication
    Employing a huge number of software tools
    Multiple small, simpler and modular programs which can be threaded together.
    The master control program of UNIX is kernel and the kernel has full control over the entire system. It is having a subsystem that has services to file system handling, memory management, and start and stop programs.
    Linux is a command line operating system which is derived from Unix and is a continuation of unix. Its distribution are very popular and healthiest. Linux is just a kernel and not a completely developed operating system. Most of the software in Linux distribution is free and open source. The square brackets are used to defined the condition for test command.
    2. How testing is done for Unix/Linux operating system.
    For example, to test the UNIX or Linux shell command. If the file is specified by first positional parameter of shell procedure $1 doesn’t exists or is of size zero, the test command displays the message. If $1 exists and has size zero test command displays nothing. The shell procedure is given a few or two positional parameters or file specified by $1 doesn’t exists, than the shell procedure exists. If $1 exists has a size greater than 0 the test command displays nothing. Unlike Unix, the Linux test command checks the file types and compares all the values.

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