Centos 7 with selinux set to permissive. Using apache as the user and confirmed apache has execute permissions to the folder and file in plugins/civicrm/civicrm/bin/cli.php
The crontab entry -
1 * * * * apache /etc/php.ini var/www/domainfolder/public_html/wp-content/plugins/civicrm/civicrm/bin/cli.php -s domain.com -u wpuser-cron -p wordpresspasswordhere -e Job -a execute
The error generated is -
X-Cron-Env: <SHELL=/bin/bash>
X-Cron-Env: <PATH=/sbin:/bin:/usr/sbin:/usr/bin>
X-Cron-Env: <MAILTO=root>
X-Cron-Env: <HOME=/usr/share/httpd>
X-Cron-Env: <LOGNAME=apache>
X-Cron-Env: <USER=apache>
Date: Fri, 12 Aug 2016 15:01:01 -0400 (EDT)
Status: RO
/bin/bash: /etc/php.ini: Permission denied
Running it as the user apache definitely seems wrong. I did so just to see that I could get the cron job running properly; then revisit selinux settings to deal with creating a group with the correct permissions and a cron user for this job.