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Full Discussion: detecting corrupted file
Top Forums Shell Programming and Scripting detecting corrupted file Post 40889 by google on Wednesday 24th of September 2003 05:52:15 PM
Old 09-24-2003
Hmm, what would you define as a corrupted file? How would you know if something is corrupt? Since everything in Unix is just a file, I dont think you can say that one file is corrupt vs another file without evaluating its attributes. If its a binary, then running it would tell you that its corrupt when it fails. Capture the return code after its execution. Anything non-zero would imply an issue.
Can you clarify what you mean?
 

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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 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. 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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