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Full Discussion: link and unlink , urgently...
Top Forums UNIX for Advanced & Expert Users link and unlink , urgently... Post 12009 by umonk on Monday 17th of December 2001 01:17:21 AM
Old 12-17-2001
Data link and unlink , urgently...
Hi all

I did something incorrectly about link command.
I try to make a link from a sub-dir to root dir, but I use the following command:
link / zzz

the result is sub-dir "zzz" was linked to "/"

Then I want to remove the "zzz" by using unlink command:
unlink zzz
It say that "Device busy"
I cannot rm nor rmdir. I can only rename it but cannot move it to any directory.

I try to boot to single user mode and try to unlink it again but it still device busy.

What happen to "zzz"
How can I delete the "zzz" without lost any content in my root dir?
 

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LEARN ABOUT SUNOS

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 5.10							    9 Oct 2002								  link(1M)
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