Почему в crontab ubuntu не работает Could not open input file

files need read permission ?

Could not open input file

chmod'd the file to 777
Changed the script to just echo "Hello world"
Tried initiating the cronjob as the root user
chmod'd the crontab file itself to 777


# crontab -e
00 * * * * /usr/local/bin/php /home/john/myscript.php

00 * * * * lynx -dump http://www.thegeekstuff.com/myscript.php

*/5 * * * * /usr/bin/curl -o temp.txt http://www.thegeekstuff.com/myscript.php

*/10 * * * * /usr/bin/wget -q -O temp.txt http://www.thegeekstuff.com/myscript.ph