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Top Forums UNIX for Advanced & Expert Users how to find out pathname from inode number Post 302116548 by Perderabo on Saturday 5th of May 2007 12:17:03 PM
Old 05-05-2007
Another problem is that there can be any number of pathnames, including zero pathnames. We get newbie admins all the time who encounter a filled filesystem, locate a large file, and simply run "rm large_file" without checking to see if the file is open. And then they wonder why the space was not freed. Smilie

But this situation could be intentional too. Lots of programs open a temporary file, unlink it, and then use it. This results in very good security since no other program can access that file. And it arranges for the file to automatically disappear when the program exits.

Also be aware that there can be many pathnames as well. Your question seems to imply an assumption of exactly one pathname per file. Filesystems don't work that way in unix.
 

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xfs_ncheck(8)						      System Manager's Manual						     xfs_ncheck(8)

NAME
xfs_ncheck - generate pathnames from i-numbers for XFS SYNOPSIS
xfs_ncheck [ -i ino ] ... [ -f ] [ -s ] [ -l logdev ] device xfs_ncheck -V DESCRIPTION
xfs_ncheck with no -i arguments generates an inode number and pathname list of all files on the given filesystem. Names of directory files are followed by /.. The output is not sorted in any particular order. The filesystem to be examined is specified by the device argument, which should be the disk or volume device for the filesystem. Filesystems stored in files can also be checked, using the -f flag. OPTIONS
-f Specifies that the filesystem image to be processed is stored in a regular file at device (see the mkfs.xfs -d file option). This might happen if an image copy of a filesystem has been made into an ordinary file. -l logdev Specifies the device where the filesystem's external log resides. Only for those filesystems which use an external log. See the mkfs.xfs -l option, and refer to xfs(5) for a detailed description of the XFS log. -s Limits the report to special files and files with setuserid mode. This option may be used to detect violations of security pol- icy. -i ino Limits the report to only those files whose inode numbers follow. May be given multiple times to select multiple inode numbers. -V Prints the version number and exits. If the filesystem is seriously corrupted, or very busy and looks like it is corrupt, a message of the form that would be generated by xfs_check(8) may appear. xfs_ncheck is only useful with XFS filesystems. SEE ALSO
mkfs.xfs(8), xfs_check(8), xfs(5). xfs_ncheck(8)
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