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Operating Systems AIX How to get the filename of which has been deleted if I know the inode number? Post 302375333 by wfavorite on Friday 27th of November 2009 09:05:49 AM
Old 11-27-2009
Finding filename given inode in AIX

Use "ncheck" to find a filename given an inode.

You will need to supply the inode and the filesystem that it came from.

If the file has been deleted - meaning ALL instances of it - then this command will not work as it uses filesystem directory entires to make the connection between a filename and the inode.

When you rm a file, you are actually un-linking it. This means that you are removing the directory entry and releasing the inode. So if you still have the file open, and it has been deleted (rm'ed) then it does not have a name (anymore).

Of course it is possible to have multiple (hard) links to a file - and therefore it would be possible to find a filename although it would not be the same as the deleted name. (name = full path to file).

The ncheck command (as well as other AIX info) can be found here:

AIX QuickStart
 

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FLS(1)							      General Commands Manual							    FLS(1)

NAME
fls - List file and directory names in a disk image. SYNOPSIS
fls [-adDFlpruvV] [-m mnt ] [-z zone ] [-f fstype ] [-s seconds ] [-i imgtype ] [-o imgoffset ] [-b dev_sector_size] image [images] [ inode ] DESCRIPTION
fls lists the files and directory names in the image and can display file names of recently deleted files for the directory using the given inode. If the inode argument is not given, the inode value for the root directory is used. For example, on an NTFS file system it would be 5 and on a Ext3 file system it would be 2. The arguments are as follows: -a Display the "." and ".." directory entries (by default it does not) -d Display deleted entries only -D Display directory entries only -f fstype The type of file system. Use '-f list' to list the supported file system types. If not given, autodetection methods are used. -F Display file (all non-directory) entries only. -l Display file details in long format. The following contents are displayed: file_type inode file_name mod_time acc_time chg_time cre_time size uid gid -m mnt Display files in time machine format so that a timeline can be created with mactime(1). The string given as mnt will be prepended to the file names as the mounting point (for example /usr). -p Display the full path for each entry. By default it denotes the directory depth on recursive runs with a '+' sign. -r Recursively display directories. This will not follow deleted directories, because it can't. -s seconds The time skew of the original system in seconds. For example, if the original system was 100 seconds slow, this value would be -100. This is only used if -l or -m are given. -i imgtype Identify the type of image file, such as raw or split. Use '-i list' to list the supported types. If not given, autodetection methods are used. -o imgoffset The sector offset where the file system starts in the image. -b dev_sector_size The size, in bytes, of the underlying device sectors. If not given, the value in the image format is used (if it exists) or 512-bytes is assumed. -u Display undeleted entries only -v Verbose output to stderr. -V Display version. -z zone The ASCII string of the time zone of the original system. For example, EST or GMT. These strings must be defined by your operating system and may vary. image [images] One (or more if split) disk or partition images whose format is given with '-i'. Once the inode has been determined, the file can be recovered using icat(1) from The Coroners Toolkit. The amount of information recovered from deleted file entries varies depending on the system. For example, on Linux, a recently deleted file can be easily recovered, while in Solaris not even the inode can be determined. If you just want to find what file name belongs to an inode, it is easier to use ffind(1). EXAMPLES
To get a list of all files and directories in an image use: # fls -r image 2 or just (if no inode is specified, the root directory inode is used): # fls -r image To get the full path of deleted files in a given directory: # fls -d -p image 29 To get the mactime output do: # fls -m /usr/local image 2 If you have a disk image and the file system starts in sector 63, use: # fls -o 63 disk-img.dd If you have a disk image that is split use: # fls -i "split" -o 63 disk-1.dd disk-2.dd disk-3.dd SEE ALSO
ffind(1), icat(1) AUTHOR
Brian Carrier <carrier at sleuthkit dot org> Send documentation updates to <doc-updates at sleuthkit dot org> FLS(1)
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