[AVFS] AVFS environment variable

As most users will use fuse with avfs, the process of always using 
$HOME/.avfs/..... gets cumbersome when viewing compressed files, ftp 
sites, etc.

Setting an environment variable, AVFS=$HOME/.avfs makes accessing these 
files a little easier. An export statement could be added to the 
mountavfs program to do this. Similarly, umountavfs could unset it.

mountavfs:

MntDir=${HOME}/.avfs
grep -q "avfsd ${MntDir}" /proc/mounts || {
   echo Mounting AVFS on $MntDir...
   avfsd $MntDir
   echo "1" >"$MntDir/#avfsstat/symlink_rewrite"
   export AVFS=$MntDir
}

umountavfs:

MntDir=${HOME}/.avfs
grep -q "avfsd ${MntDir}" /proc/mounts && {
   echo unMounting AVFS on $MntDir...
   fusermount -u $MntDir
   unset AVFS
}

Of course, this can all be done during the logon/logout sequence without 
changing the existing programs. For me, it's just a little less clutter.

-- 
Peter


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