1arch(1)                          User Commands                         arch(1)
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NAME

6       arch - display the architecture of the current host
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SYNOPSIS

9       arch [-k | archname]
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DESCRIPTION

13       The  arch  utility displays the application architecture of the current
14       host system. Due to extensive historical use of  this  command  without
15       any  options,  all  SunOS 5.x SPARC based systems will return "sun4" as
16       their application architecture. Use of this command is discouraged. See
17       NOTES section below.
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20       Systems  can be broadly classified by their architectures, which define
21       what executables will run on which machines. A distinction can be  made
22       between kernel architecture and application architecture (or, commonly,
23       just "architecture"). Machines that run different kernels due to under‐
24       lying hardware differences may be able to run the same application pro‐
25       grams.
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OPTIONS

28       -k    Displays the kernel architecture, such as  sun4u.   This  defines
29             which  specific  SunOS  kernel  will  run on the machine, and has
30             implications only for programs that depend on the kernel  explic‐
31             itly (for example, ps(1)).
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OPERANDS

35       The following operand is supported:
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37       archname    Use  archname to determine whether the application binaries
38                   for this application architecture can run  on  the  current
39                   host  system.  The   archname  must  be a valid application
40                   architecture, such as  sun4, i86pc, and so forth.
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42                   If application binaries for archname can run on the current
43                   host system, TRUE (0) is returned. Otherwise,  FALSE (1) is
44                   returned.
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EXIT STATUS

48       The following exit values are returned:
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50       0     Successful completion.
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53       >0    An error occurred.
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ATTRIBUTES

57       See attributes(5) for descriptions of the following attributes:
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62       ┌─────────────────────────────┬─────────────────────────────┐
63       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
64       ├─────────────────────────────┼─────────────────────────────┤
65       │Availability                 │SUNWcsu                      │
66       └─────────────────────────────┴─────────────────────────────┘
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SEE ALSO

69       mach(1), ps(1), uname(1), attributes(5)
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NOTES

72       This command is provided for compatibility with previous  releases  and
73       its  use is discouraged. Instead, the uname command is recommended. See
74       uname(1) for usage information.
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78SunOS 5.11                        21 Oct 2002                          arch(1)
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