tar the symbolic link Post: 302198550

Sponsored Content

Top Forums Shell Programming and Scripting tar the symbolic link Post 302198550 by nua7 on Friday 23rd of May 2008 07:11:23 AM

05-23-2008

Registered User

Normally, when tar archives a symbolic link, it writes a record to the archive naming the target of the link. In that way, the tar archive is a faithful record of the filesystem contents. `--dereference' (`-h') is used with `--create' (`-c'), and causes tar to archive the files symbolic links point to, instead of the links themselves. When this option is used, when tar encounters a symbolic link, it will archive the linked-to file, instead of simply recording the presence of a symbolic link.

The name under which the file is stored in the file system is not recorded in the archive. To record both the symbolic link name and the file name in the system, archive the file under both names. If all links were recorded automatically by tar, an extracted file might be linked to a file name that no longer exists in the file system.

If a linked-to file is encountered again by tar while creating the same archive, an entire second copy of it will be stored. (This might be considered a bug.)

So, for portable archives, do not archive symbolic links as such, and use `--dereference' (`-h'): many systems do not support symbolic links, and moreover, your distribution might be unusable if it contains unresolved symbolic links.

nua7

View Public Profile for nua7

Find all posts by nua7

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

symbolic Link

question abt symbolic link ... i'm doing the following ... ln -s x.sh ./scripts/y.sh and cat ./scripts/y.sh it is giving following error cat: cannot open y.sh Any reason u an think of ? But it is working fine when i goto scripts directory and cretae the symbolic link. ...

2. UNIX for Dummies Questions & Answers

Create Symbolic Link

I am Solaris korn shell. I want to create a symbolic link. I have a directory /u01/ftp01/db I want to reference it as /u05/swe/my (this is not a real directory) I tried a symbolic link but it does not work ln -s /u01/ftp01/db /u05/swe/my ln: cannot create //u05/swe/my: No such...

3. UNIX for Dummies Questions & Answers

need some info about symbolic link and hard link

hello folks how y'all doin well i have some questions about symbolic link and hard link hope some one answer me i open terminal and join as root and i wrote ln -s blah blah then i wrote ls i see red file called blah blah but didn't understand what is this can some one explain and...

4. Solaris

How to copy a symbolic link

Hi I am trying to find a copy command that will copy a symbolic link itself and not what the link is actually pointing to. I am trying to copy a directory that has some symbolic links within it in IBM AIX unix this is achieved using cp -prh <source dir> <target> the 'h' flag is a hard copy...

5. Shell Programming and Scripting

symbolic link

Hi, i am trying to create sym links on sles 11 , but it seems i am doing something wrong. oracle@tests:/u01/app/oracle/oradata/ACIS> pwd /u01/app/oracle/oradata/ACIS oracle@tests:/u01/app/oracle/oradata/ACIS> ln -s /db/ACIS/dbase/dbf/ /u01/app/oracle/oradata/ACIS/...

6. Shell Programming and Scripting

Symbolic Link Help

Hello All, This may be a silly question to some but I am really stuck. Is there a way to reverse the following; sudo rm /bin/sh sudo ln -s /bin/bash /bin/sh It was part of a driver compile/installation procedure by Digi for Ubuntu stating that dash isn't supported and a symbolic link...

7. Shell Programming and Scripting

ls on a symbolic link

Hi all, Can anyone please confirm if the command below is the only way that I can get what the symbolic link is set to? mnlxd110(oracle)/db/posd2/dba$: ls -l | grep "^l" lrwxrwxrwx 1 oracle dba 28 Aug 9 2011 bdump -> diag/rdbms/posp1/posp1/trace mnlxd110(oracle)/db/posd2/dba$:...

8. UNIX for Dummies Questions & Answers

[Solved] Symbolic link not allowed or link target not accessible

Hi everybody, I read about treads realted to this issue but they did not resovle issue given below. Please help me resolve issue given below I have html file under /srv/www/htdocs/actual_folder ls actual_folder/ test.html and following link works...

9. How to Post in the The UNIX and Linux Forums

How to list all symbolic link?

how to list all symbolic link, can i use find / path -type l

10. UNIX for Dummies Questions & Answers

Symbolic link

Hi, trying to understand more about symblic link, when I compiled a program called "match" in one folder ~/downloadsoftware/I want this program to be accessible like a system command by putting a symbolic link in /usr/bin/ Not by setting the $PATH method in .bashrc at this time. What I did is:...

LEARN ABOUT FREEBSD

archive_read_new

ARCHIVE_READ_NEW(3)					   BSD Library Functions Manual 				       ARCHIVE_READ_NEW(3)

NAME

     archive_read_new -- functions for reading streaming archives

LIBRARY

     Streaming Archive Library (libarchive, -larchive)

SYNOPSIS

     #include <archive.h>

     struct archive *
     archive_read_new(void);

DESCRIPTION

     Allocates and initializes a struct archive object suitable for reading from an archive.  NULL is returned on error.

     A complete description of the struct archive object can be found in the overview manual page for libarchive(3).

SEE ALSO

     tar(1), libarchive(3), archive_read_data(3), archive_read_filter(3), archive_read_format(3), archive_read_set_options(3), archive_util(3),
     tar(5)

BSD
								 February 2, 2012							       BSD

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

symbolic Link

Discussion started by: bhargav

2. UNIX for Dummies Questions & Answers

Create Symbolic Link

Discussion started by: lesstjm

3. UNIX for Dummies Questions & Answers

need some info about symbolic link and hard link

Discussion started by: detective linux

4. Solaris

How to copy a symbolic link

Discussion started by: jimthompson