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Full Discussion: Hard Link vs SOft Link????
Top Forums UNIX for Dummies Questions & Answers Hard Link vs SOft Link???? Post 302200573 by bathija on Thursday 29th of May 2008 12:38:56 PM
Old 05-29-2008
hard lick-- used in cases when you want the link to be in the same file system. In this case the inode for both link and the file is the same. If you want to move the shardlink to another location or you want to move the original file, it does not affect either of them.

command is ln "file name" "link"

this can not be used on directories. and can be used only in the same fS and not outside file systems

Soft links: used when you want a temporary link. ths inode values are different here for link and the file.
this can be both for file and directories.
If the source file gets deleted the link will be removed at next reboot
. This can extend across file systems

command is ---ln -s "file" "link"

please reverrt if you have any qureries.
 

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LEARN ABOUT HPUX

set_link

set link(1m)															      set link(1m)

NAME

       set link - Changes the value of a modifiable, single-valued attribute of a soft link

SYNOPSIS

       cdscp set link link-name attribute-name = attribute-value

ARGUMENTS

       The  full  name	of  the  soft link.  The name of the attribute to be modified.	Specify only one attribute at a time.  See Description for
       valid attribute names.  The value of a particular attribute.

DESCRIPTION

       The set link command changes the value of a modifiable, single-valued attribute of a soft link.	The following are valid attributes: Speci-
       fies the full name of the directory, object entry, or other soft link to which the soft link points.  Specifies a timeout value after which
       the soft link is either checked or deleted.  The timeout value contains both an expiration time and an  extension  time.  If  a	soft  link
       expires and its target entry is deleted, the soft link is deleted. If the soft link still points to an existing entry, its life is extended
       by the expiration time. Specify expiration-time in the format yyyy-mm-dd-hh:mm:ss (year-month-day-hour:minute:second).  Specify	extension-
       time in the format ddd-hh:mm:ss (day-hour:minute:second).

   Privilege Required
       You must have write permission to the soft link.

NOTE

       This command is replaced at Revision 1.1 by the dcecp command and may not be provided in future releases of DCE.

EXAMPLE

       The  following  command	redirects a soft link named /.:/admin/work_disk from its current destination name, /.:/admin/work_disk01, to a new
       destination name, /.:/admin/work_disk03.  cdscp> set link /.:/admin/work_disk CDS_LinkTarget = /.:/admin/work_disk03

RELATED INFORMATION

       Commands: create link(1m), delete link(1m), list link(1m), show link(1m)

																      set link(1m)
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