Script to Update Asterisk

1. Type the following and save as file name "update-asterisk.sh":
   cd /usr/src
   wget http://ftp.digium.com/pub/asterisk/asterisk-$1.tar.gz
   tar xvzf asterisk-$1.tar.gz
   cd /usr/src/asterisk-$1
   make clean
   ./configure
   make
   make install
   
2. Allow execution right of update-asterisk.sh:
   # chmod +x update-asterisk.sh
   
3. Update Asterisk to 1.4.11:
   # ./update-asterisk.sh 1.4.11