V3/usr/man/man8/istat.8

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including files from this version of Unix. 
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NAME		istat  --  get inode status
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SYNOPSIS	istat_____ [ filesystem ] inumber\d1\u ...
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DESCRIPTION	istat_____
gives information about one or more i-nodes
on the given file system or on /dev/rk0 if no file system
is given.
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The information is in exactly the same form
as that for stat(I),
except that mode letter "a" is
used to indicate that the i-node is allocated,
"u" that it is unallocated.
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FILES		/etc/uids,
/dev/rk0
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SEE ALSO	stat(I), ls(I) (-l option)
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DIAGNOSTICS	--
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BUGS		istat_____
ignores any read error
and pretends to give status even if the file system
is not physically present.