ps -o rss -C httpd | tail -n +2 | (sed 's/^/x+=/'; echo x) | bc

curl https://bintray.com/sbt/rpm/rpm | sudo tee /etc/yum.repos.d/bintray-sbt-rpm.repo
sudo yum install sbt

postsuper -d ALL deferred

Result e.g.:

postsuper: Deleted: 712 messages

GRANT ALL PRIVILEGES ON db_name.* to 'new_user'@'hostname' IDENTIFIED BY 'password';

Can’t take much credit for this how to guide. I followed the post on the forum (below) and can confirm that it does work.

Tools/Materials needed:

• Star head screw drivers (large and small head)
• Small flat head screw driver
• 4 core electrical cable
• Cable stripper

Steps to install:

**Make sure power to boiler is turned off at the fuse box and tested**

1. Hook up electrical cable to heat link as shown:

N – Neutral – Blue wire

L – Live – Brown wire

2 – (Common) – Grey wire

3 – (Call for heat) – Black wire