Reading Redshift’s Current Transition Period Value for Bash Scripts or Conky or Whatever

Quick one-liner to read in Redshift’s current transition period value and assign it to a variable. (Redshift adjusts the color temperature of your screen when it gets dark.)

redshift -p 2>&1 | grep -i 'Period:' | sed -e 's@.*: \(.*\)@\1@g'

Or assign to a variable:

R=`redshift -p 2>&1 | grep -i 'Period:' | sed -e 's@.*: \(.*\)@\1@g'`
echo $R