06-30-2011
The "." and ".." special directories originally used to be directory hardlinks (created by hand!) but this hasn't been the case for decades now. This discussion's come up a few times, and nobody's managed to find a modern OS that supports directory hardlinks so far.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi,
what is link? and soft link? how about hard one and symbolic link.
and inode.
i get confuse about this links. could anyone help me with full explainsion?
thks
Gusla (5 Replies)
Discussion started by: gusla
5 Replies
2. UNIX for Dummies Questions & Answers
Would I be correct in assuming that find doesn't bother recursivley searching down sim links. (It doesn't seem to so I guess it doesn't!!!) Is there anyway to make it do so? (3 Replies)
Discussion started by: peter.herlihy
3 Replies
3. UNIX for Dummies Questions & Answers
hi, i am in a directory, have 2 files as below
then do a ls -l gives the below
lrwxrwxrwx 1 root system 23 Mar 08 2001 filea -> /adir/filea
lrwxrwxrwx 1 root system 23 Mar 08 2001 filea -> /adir/fileb
now, when i do a cd /adir, the system said, adir not... (5 Replies)
Discussion started by: yls177
5 Replies
4. Shell Programming and Scripting
I am digging for certain types of files in the current directory and all its sub-directories and archiving them with the following code:
#! /usr/bin/ksh
Archive=`date +%Y_%m_%d_%T`
find . -type f \( -name \*\.ksh -o -name \*\.sql -o -name \*\.ini \) -print|xargs tar -cf... (4 Replies)
Discussion started by: manthasirisha
4 Replies
5. AIX
Hi
I'm logged in as root in an aix box
Which command will list all the soft links and hard links present in the server ? (2 Replies)
Discussion started by: newtoaixos
2 Replies
6. UNIX for Dummies Questions & Answers
Hai,
give me a simple example for soft and hard links.
this will work for soft link ?? ln -s (2 Replies)
Discussion started by: Ramesh M
2 Replies
7. Shell Programming and Scripting
Hi team, i am writing a purge script to delete softlinks and hardlinks on linux system which are 3/10/30 days old. To test the script i need to create links with old timestamp, i am able to cange timestamp for files but not for links.
i tried touch -h option but this option is not available on... (1 Reply)
Discussion started by: Satyak
1 Replies
8. UNIX for Dummies Questions & Answers
Hello,
I would like to create symbolic links for a series of files in my cwd (after confirming that the links don't already exist). The above files all have a similar prefix, but different extensions.
I created a shell script like shown below and I get an error message "No such file or... (4 Replies)
Discussion started by: Gussifinknottle
4 Replies
9. UNIX for Dummies Questions & Answers
Hello.
I have some main directories.
For example :
/main_dir1
/main_dir2In main_dir2, I have a sub dir named sub_dir2-1 with 2 files in it ( file_2-1, file_2-2 )
/main_dir2sub_dir2-1file_2-1
file_2-2From "/main_dir1/A/B/C" I make a soft link
ln -s /main_dir2/sub_dir2-1 ... (6 Replies)
Discussion started by: jcdole
6 Replies
10. UNIX for Advanced & Expert Users
Hi. Can somebody tell me if there's a way of creating a symbolic link from a directory on one filesystem to that on another that will allow a find command that doesn't use the -L param to locate a particular file under that new 'linked' dir. With a normal sym link the find command on that... (6 Replies)
Discussion started by: user052009
6 Replies
FDUPES(1) General Commands Manual FDUPES(1)
NAME
fdupes - finds duplicate files in a given set of directories
SYNOPSIS
fdupes [ options ] DIRECTORY ...
DESCRIPTION
Searches the given path for duplicate files. Such files are found by comparing file sizes and MD5 signatures, followed by a byte-by-byte
comparison.
OPTIONS
-r --recurse
include files residing in subdirectories
-s --symlinks
follow symlinked directories
-H --hardlinks
normally, when two or more files point to the same disk area they are treated as non-duplicates; this option will change this behav-
ior
-n --noempty
exclude zero-length files from consideration
-f --omitfirst
omit the first file in each set of matches
-1 --sameline
list each set of matches on a single line
-S --size
show size of duplicate files
-q --quiet
hide progress indicator
-d --delete
prompt user for files to preserve, deleting all others (see CAVEATS below)
-v --version
display fdupes version
-h --help
displays help
SEE ALSO
md5sum(1)
NOTES
Unless -1 or --sameline is specified, duplicate files are listed together in groups, each file displayed on a separate line. The groups are
then separated from each other by blank lines.
When -1 or --sameline is specified, spaces and backslash characters () appearing in a filename are preceded by a backslash character.
CAVEATS
If fdupes returns with an error message such as fdupes: error invoking md5sum it means the program has been compiled to use an external
program to calculate MD5 signatures (otherwise, fdupes uses interal routines for this purpose), and an error has occurred while attempting
to execute it. If this is the case, the specified program should be properly installed prior to running fdupes.
When using -d or --delete, care should be taken to insure against accidental data loss.
When used together with options -s or --symlink, a user could accidentally preserve a symlink while deleting the file it points to.
Furthermore, when specifying a particular directory more than once, all files within that directory will be listed as their own duplicates,
leading to data loss should a user preserve a file without its "duplicate" (the file itself!).
AUTHOR
Adrian Lopez <adrian2@caribe.net>
FDUPES(1)