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Thread: Is crash a command

  1. #1
    Contributing Member
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    Jul 2006
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    74

    Question Is crash a command

    Is there any command called crash in UNIX operating system. I can across this term in a book but could not get much detail on this. Can someone help me to know about this?


  2. #2
    Contributing Member
    Join Date
    Jul 2006
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    57

    Re: Is crash a command

    I do not think crash is a command in UNIX operating system. It refers to an activity or an operation in which the system becomes unoperatable.


  3. #3
    Junior Member
    Join Date
    Sep 2006
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    27

    Re: Is crash a command

    Yes Stephen you are right Crash is not a command and it is an activity in UNIX operating system.


  4. #4
    Junior Member
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    Aug 2006
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    2

    Re: Is crash a command

    Quote Originally Posted by scott View Post
    Is there any command called crash in UNIX operating system. I can across this term in a book but could not get much detail on this. Can someone help me to know about this?
    hi,
    yes,

    crash is command to the crash dump
    regards
    kanth


  5. #5
    Junior Member
    Join Date
    Aug 2006
    Answers
    2

    Re: Is crash a command

    Quote Originally Posted by scott View Post
    Is there any command called crash in UNIX operating system. I can across this term in a book but could not get much detail on this. Can someone help me to know about this?

    crash is a command to examine the crash dumps

    The crash command is used to examine the system memory image of a running or a crashed system by formatting and printing control structures, tables, and other information. Command line arguments to crash are dumpfile, namelist, and output-file.
    OPTIONS
    -d dumpfile
    Specify dumpfile as the file containing the system memory image. The default dumpfile is /dev/mem . The system image can also be the pathname of a dump file generated by the savecore utility.
    -n namelist
    Specify the text file namelist which contains the symbol table information needed for symbolic access to the system memory image to be examined. The default namelist is /dev/ksyms. Note: It is recommended that crash dumps be analyzed on a machine having the same kernel architecture as the machine that the dump was taken from.
    -w output-file
    When the crash command is invoked, a session is initiated. The output from a crash session is directed to output-file. The default output-file is the standard output.

    regards

    Umakanth.G


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