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Days between dates.

Posted 04-11-2015 at 08:20 AM by peonuser

Thanx to an lq user, I was able to get this to work.

Just an experiment to determine the amount of days between two dates. In this case it is the days left in the current presidency.

Code:
#!/bin/bash
D=`date +%Y-%m-%d`
D1=`date +%s -d "$D"`
D2=`date +%s -d "2017-01-20"`
((diff_sec=D2-D1))
echo - | awk -v SECS=$diff_sec '{printf "Number of days : %d",SECS/(60*60*24)}'
echo " till Obama leaves office."
Result:


$ ./datediff.sh
Number of days : 656 days till Obama leaves office.
$

Or semi-gui You could use a launcher to start the program and then not need the command line.

Code:
#!/bin/bash
D=`date +%Y-%m-%d`
D1=`date +%s -d "$D"`
D2=`date +%s -d "2017-01-20"`
((diff_sec=D2-D1))
a=`echo - | awk -v SECS=$diff_sec '{printf "Number of days : %d",SECS/(60*60*24)}'`
a=$a" till Obama leaves office."
zenity --info --text="$a"
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