airos-crond-install

# run this on the command line of the ubiquiti device
# cd /etc/persistent/; mkdir etc; mkdir etc/crontabs; wget -O cron-install.sh http://pastebin.com/raw/64X6hrvX; chmod +x ./cron-install.sh; ./cron-install.sh
#

cat << EOF > rc.prestart
#!/bin/sh
#
# /etc/persistent/rc.prestart
#
## add crond to the start up list
CROND=`grep crond /etc/startup.list | cut -d= -f2` if [ ${CROND} ]; then
        :
else
        echo 'crond' >> /etc/startup.list fi
# add crond to the /etc/sysinit directory
if [ -e /etc/sysinit/crond.conf ];then
        :
else
        cp /etc/persistent/etc/crond.conf /etc/sysinit/crond.conf fi
# link /etc/crontabs to /etc/persistent/etc/crontabs
if [ -e /etc/crontabs ]; then
        :
else
        ln -s /etc/persistent/etc/crontabs /etc/crontabs fi

EOF


cat << EOF > etc/crond.conf
#!/bin/sh /etc/rc.common
#
# BusyBox v1.11.2 (2012-08-16 13:34:40 EEST) multi-call binary Usage: crond -fbS -l N -L LOGFILE -c DIR
#    -f Foreground -b Background (default) -S Log to syslog (default) -l Set log level. 0 is the most verbose, default 8 -L Log to file -c Working dir
#
# ------------------ do not edit below this line ------------------
plugin_start() {
        /usr/bin/crond
        true
}
plugin_stop() {
        kill `pidof crond`
        true
}
EOF


cat << EOF > etc/crontabs/$USER
#
# /etc/persistent/etc/crontabs/ubnt This is the ubnt user's crontab
#
#         File Format field values +----------------------------------- minute 0-59
# |    +------------------------------ hour 0-23
# |    |    +------------------------- day of month 1-31
# |    |    |    +-------------------- month 1-12
# |    |    |    |    +--------------- weekday 0-6
# |    |    |    |    |    +---------- command
# |    |    |    |    |    |
# */5  *    *    *    *    /do/something/here

EOF

save
/usr/etc/init.d/plugin stop crond &&/usr/etc/init.d/plugin start crond
chmod +x /etc/persistent/etc/rc.prestart
cp /etc/persistent/etc/crontabs/ubnt /etc/persistent/etc/crontabs/$USER
./rc.prestart
crontab -l
ps | grep cron