Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
hardlink(1)		    General Commands Manual		   hardlink(1)

NAME
       hardlink	- Link multiple	copies of a file

SYNOPSIS
       hardlink	[option]...  [directory|file]...

DESCRIPTION
       hardlink	 is  a	tool  which  replaces copies of	a file with hardlinks,
       therefore saving	space.

OPTIONS
       -h or --help
	      print quick usage	details	to the screen.

       -v or --verbose
	      More verbose output. If specified	once, every hardlinked file is
	      displayed, if specified twice, it	also shows every comparison.

       -n or --dry-run
	      Do not act, just print what would	happen

       -f or --respect-name
	      Only try to link files with the same (basename).

       -p or --ignore-mode
	      Link/compare  files even if their	mode is	different. This	may be
	      a	bit unpredictable.

       -o or --ignore-owner
	      Link/compare files even if their owner (user and group) is  dif-
	      ferent. It is not	predictable

       -t or --ignore-time
	      Link/compare files even if their time of modification is differ-
	      ent. You almost always want this.

       -X or --respect-xattrs
	      Only try to link files with the same extended attributes.

       -m or --maximize
	      Among equal files, keep the file with the	highest	link count.

       -M or --minimize
	      Among equal files, keep the file with the	lowest link count.

       -O or --keep-oldest
	      Among equal files, keep the oldest file (least recent  modifica-
	      tion  time).  By default,	the newest file	is kept. If --maximize
	      or --minimize is specified, the link count has a	higher	prece-
	      dence than the time of modification.

       -x or --exclude
	      A	 regular  expression  which excludes files from	being compared
	      and linked.

       -i or --include
	      A	regular	expression to include files. If	the  option  --exclude
	      has been given, this option re-includes files which would	other-
	      wise be excluded.	If the option is used without --exclude,  only
	      files matched by the pattern are included.

       -s or --nimum-size
	      The  minimum  size  to  consider.	By default this	is 1, so empty
	      files will not be	linked.	An optional suffix of K,M,G,T  may  be
	      provided,	indicating that	the file size is KiB,MiB,GiB,TiB.

ARGUMENTS
       hardlink	takes one or more directories which will be searched for files
       to be linked.

BUGS
       hardlink	assumes	that the trees it operates on do not change during op-
       eration.	If a tree does change, the result is undefined and potentially
       dangerous. For example, if a regular file  is  replaced	by  a  device,
       hardlink	may start reading from the device. If a	component of a path is
       replaced	by a symbolic link or file permissions change, security	may be
       compromised.  Do	 not run hardlink on a changing	tree or	on a tree con-
       trolled by another user.

       hardlink	, as of	version	0.3 RC1, improperly calculates the  amount  of
       space saved if the option --respect-name	is specified. In previous ver-
       sions, the amount was wrong in almost all other cases as	well.

AUTHOR
       The program hardlink and	this manpage have been written by  Julian  An-
       dres  Klode,  and  are  licensed	under the MIT license. See the code of
       hardlink	for further information.

0.3				  2012-09-17			   hardlink(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | ARGUMENTS | BUGS | AUTHOR

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=hardlink&sektion=1&manpath=FreeBSD+12.1-RELEASE+and+Ports>

home | help