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Getting yesterday's or tommorrow's date

It is often necessary to work out yesterdays or tommorrows dates in scripts. Here's an easy way to do it.

#!/bin/sh Yesterday=`TZ=PST+24 date +%D` echo "Yesterday is:" $Yesterday Tomorrow=`TZ=PST-24 date +%D` echo "Tomorrow is:" $Tomorrow Today=`date +%D` echo "Today is:" $Today
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