[Bug-tar] tar -X and ~ is tricky

[Ingo Lantschner]

Hi all, 

seems as if the leading / make other problems beside of updating
an archive (see some dayes ago on this list):

If you want to exclude certain directories from beeing stored in an 
archive, you MUST NOT use the ~-wildcard in the file which describes the 
not-to-archive-files.

        $ tar -cvf some.tar -X nobak.txt somepath 

will work if nobak.txt 

reads like: 
---- snip ----
*.iso
home/*/.opera/cache4
home/*/.mozilla/temp
home/*/tmp
reads like
---- snap ----


But it will fail, if nobak.txt is like:
---- snip ----
*.iso
~/.opera/cache4
~/home/*/.mozilla/temp
~/home/*/tmp
---- snap ----

The reason may be, that ~ translates to /home/username which is different 
from home/username (see the missing Slash!). tar removes the leading slash 
by default, in order to have a relative path.

Bye, Ingo.


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