Mount and unmount smb file systems on OS X

gistfile1.sh

#!/bin/sh

# Copyright (C) 2012-15  Alec Clews

# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# http://www.gnu.org/licenses/gpl-2.0.html#SEC1

# Mount or Unmount SMB file systems from a config file
CONFIG_FILE=~/.smbfsconf
# File Layout is 
# Server    Sharename    username   password options
# Any lines that start with '#' are ignored.
# suggest running chmod 600 $CONFIG_FILE for security purposes

# Optional script parameter matches the server name or share name

# if the script is called umount (or similiar) then it will perform the unmount operation. So you can create 
# a link called 'umountstuff' for instance


sed -Ee '/(^\s*#)|^\s*$/d' < $CONFIG_FILE |
while read server sharename user password options ; do 
    mount_point=$(echo $sharename | gsed -e 's/\(%20\)\| /_/g' )
    if [[ -z "$1" ]] || echo $server $sharename | grep "$1" > /dev/null; then
        if mount | grep "//$user@$server/$sharename" > /dev/null ; then
            if [[ $0 == *umount* ]] ; then
                echo ummounting /Volumes/$mount_point
                umount /Volumes/$mount_point
            else
                echo //$server/$mount_point aready mounted
            fi
        else
            if [[ $0 == *umount* ]] ; then
                echo //$server/$sharename not  mounted
            else
                test -d /Volumes/$mount_point || mkdir /Volumes/$mount_point
                echo mounting //$server/$sharename on /Volumes/$mount_point
                mount_smbfs $options  //$user:$password@$server/$sharename /Volumes/$mount_point
            fi
        fi
    fi
done