10-13-2003
Re: Perl: sorting files by whats in'em
Quote:
Originally posted by quantumechanix
i have some files in a directory. each file contains a number in a specific place in it's header. what i would like to do is create a list of the files in a text file that has them sorted according to this number. there is also one other thing. some of the files' numbers "overlap" and i don't want these files included. since this is kind of weird to explain i'll use the following example:
Your explanation of "overlap" is a bit confusing. By throwing out your "overlapping" numbers, you are already assuming that your numbers are mostly sorted descending. Explain what you are trying to do here. It seems like there is more behind your question than just sorting. You are eliminating numbers based on a special criteria.
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LEARN ABOUT MINIX
xfs_ncheck
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)