# install
sudo apt-get install -y gnokii

# set permissions (TODO set permissions with udev)
sudo chmod o+rw /dev/ttyUSB0

# configure
cat < .gnokiirc

[global]
model = AT
port = /dev/ttyUSB0
connection = serial
EOF

# show sms status

gnokii --showsmsfolderstatus

# show sms

gnokii --getsms MT 0 end

# show sms and filter for "http"

gnokii --getsms MT 0 2> /dev/null | grep http

# delete sms

gnokii --deletesms MT 0

# Links

http://linuxgazette.net/164/tomar.html
http://wiki.gnokii.org/index.php/SMS_options
http://ubuntuforums.org/showthread.php?t=1123538