net/tsocks shell script working?

[Klaus Heinz <k.heinz%janzehn.kh-22.de@localhost>]

Hi,

has anyone ever seen the command '. /usr/pkg/bin/tsocks off' working?

I wonder how 
   libtsocks="/usr/pkg/lib/libtsocks.so"
   ...
   LD_PRELOAD=`echo $LD_PRELOAD | sed 's,$libtsocks[ :]?,,'`

could ever remove the string "/usr/pkg/lib/libtsocks.so" from LD_PRELOAD...
It is not even a (Linux|GNU)ism, GNU sed does not use ?, although it
has \? as an extension.

For me it only works like this (with nbsed and gsed)

   LD_PRELOAD=`echo $LD_PRELOAD | sed 's;'$libtsocks'[ :]\{0,1\};;'` 

ciao
     Klaus