USER=username
API_KEY=1234ABC
OUTPUTDIR=/var/spool/sms
LOG_SERVICE=local1
I’ve just written the below script to send SMS via the inteltech.com/clicksend.com service. It takes the above configuration in /etc/sms-pass.cfg where the username is assigned with the clicksend web page and the API key is a long hex string that clicksend provides as a password. The LOG_SERVICE is which syslog service to use for the log messages, on systems that are expected to send many messages I use the service “local1” and I use “user” for development systems.
I hope this is useful to someone, and if you have any ideas for improvement then please let me know.
#!/bin/sh
# $1 is destination number
# text is on standard input
# standard output gives message ID on success, and 0 is returned
# standard error gives error from server on failure, and 1 is returned
. /etc/sms-pass.cfg
OUTPUT=$OUTPUTDIR/out.$$
TEXT=`tr "[:space:]" + | cut -c 1-159`
logger -t sms -p $LOG_SERVICE.info "sending message to $1"
wget -O $OUTPUT "https://api.clicksend.com/http/v2/send.php?method=http&username=$USER&key=$API_KEY&to=$1&message=$TEXT" > /dev/null 2> /dev/null
if [ "$?" != "0" ]; then
echo "Error running wget" >&2
logger -t sms -p $LOG_SERVICE.err "failed to send message \"$TEXT\" to $1 – wget error"
exit 1
fi
if ! grep -q ^.errortext.Success $OUTPUT ; then
cat $OUTPUT >&2
echo >&2
ERR=$(grep ^.errortext $OUTPUT | sed -e s/^.errortext.// -e s/..errortext.$//)
logger -t sms -p $LOG_SERVICE.err "failed to send message \"$TEXT\" to $1 – $ERR"
rm $OUTPUT
exit 1
fi
ID=$(grep ^.messageid $OUTPUT | sed -e s/^.messageid.// -e s/..messageid.$//)
rm $OUTPUT
logger -t sms -p $LOG_SERVICE.info "sent message to $1 with ID $ID"
exit 0