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Full Discussion: How to select unique hard link files?
Top Forums UNIX for Advanced & Expert Users How to select unique hard link files? Post 302795131 by ravisingh on Wednesday 17th of April 2013 10:13:24 AM
Old 04-17-2013
Code:
find . -type f -ls | awk '{$7+= $7 END {print $7}'

This program will output the size of all the files searched recursively from the current files.
This may also includes the same hard-linked files. So, how to write a program that will fetch the size of all the files but the hard-linked ones have to be included only ones.
I explain the same a bit more. Suppose 2 files are there having same inode number and both are located in the same directory tree from the current directory. So, I need that when the program calculates the total size of all the files, it should consider only 1 file among the 2 hard-linked files.
 

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LEARN ABOUT OPENSOLARIS

link

link(1M)						  System Administration Commands						  link(1M)

NAME

       link, unlink - link and unlink files and directories

SYNOPSIS

       /usr/sbin/link  existing-file new-file

       /usr/xpg4/bin/link  existing-file new-file

       /usr/sbin/unlink file

DESCRIPTION

       The link and unlink commands link and unlink files and directories. Only super-users can use these commands on directories.

       Use  link  to  create  a new file that points to an existing file. The  existing-file and  new-file operands  specify the existing file and
       newly-created files.  See OPERANDS.

       link and  unlink directly invoke the link(2) and unlink(2) system calls, performing exactly what they are told to  do  and  abandoning  all
       error checking. This differs from the  ln(1) command. See  ln(1).

       While linked files and directories can be removed using unlink, it is safer to use rm(1) and rmdir(1) instead. See  rm(1) and  rmdir(1).

   /usr/xpg4/bin/link
       If  the	existing  file being hard linked is itself a symbolic link, then the newly created file (new-file) will be a hard link to the file
       referenced by the symbolic link, not to the symbolic link object itself (existing-file).

OPERANDS

       The following operands are supported:

       existing-file	Specifies the name of the existing file to be linked.

       file		Specifies the name of the file to be unlinked.

       new-file 	Specifies the name of newly created (linked) file.

ENVIRONMENT VARIABLES

       See  environ(5) for descriptions of the following environment variables that affect the execution of  link: LANG, LC_ALL, LC_CTYPE, LC_MES-
       SAGES, and NLSPATH.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

   /usr/xpg4/bin/link
       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWxcu4			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       ln(1), rm(1), link(2), unlink(2), attributes(5), environ(5), standards(5)

SunOS 5.11							    9 Oct 2002								  link(1M)
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