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(am-utils.info)karch Selector Variable

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karch Selector Variable
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   This is provided as a hook for the kernel architecture.  This is
used on SunOS 4 and SunOS 5, for example, to distinguish between
different `/usr/kvm' volumes.  `${karch}' defaults to the "machine"
value gotten from uname(2).  If the uname(2) system call is not
available, the value of `${karch}' defaults to that of `${arch}'.
Finally, a different value can be set with the `-k' command line option.