inside /etc/ppp/ip-up.d i have this script that executes automatically when the interface ppp0 comes up. Code: #!/bin/sh echo "Checking if exist internet connection" ping -c 3 www.google.com if [ $? -eq 0 ]; then echo "Starting to send & download email" echo "Flushing mail queue" /usr/sbin/postqueue -c /etc/postfix -f echo "Starting fetchmail" /usr/bin/fetchmail -v -f /etc/fetchmailrc -L /var/log/fetchmail.log echo "Checking mail queue and fetchmail process" while ! postqueue -p | grep -q empty && ps -C fetchmail > /dev/null; do echo "There is still mail in queue or fetchmail is still working" sleep 1 done echo "Terminating the connection" killall wvdial fi echo "Internet connection not found" i need to see the output for debug of this script, how can i log this to /var/log/script.log everytime it runs automatically?