Shell Script - Yesterday's date

[Tracey]

Could someone please share with me the easiest way to find out yesterday's date (today-1)in a shell script?

Thanks,
Tracey

[Alan Riggs · Accepted solution]

TZ=GMT+34 date

You will have to play with the time offset to match your particular timezone.

[harry d brown jr]

Follow this thread:

http://forums.itrc.hp.com/cm/QuestionAnswer/1,11866,0x6901c7af36b7d5118ff10090279cd0f9,00.html

live free or die
harry

[Alan Riggs]

oops:

typo 34 should be 23

[A. Clay Stephenson]

Hi Tracey:

Try this:
YESTERDAY=$(caljd.sh $(caljd.sh -p 1))
echo "Yesterday = ${YESTERDAY}"

Use the attached caljd.sh

Regards, Clay

[Mike Hassell]

Tracey,

Or you can take the simple route:

#!/bin/sh

today=`date +%d`

yesterday=`expr $today - 1`

echo $yesterday

Of course this may not be as efficient as the others listed above.

-Mike

[Craig Rants]

Try this out

DATE=`TZ=MET+24 date +%d`
echo $DATE

Good Luck,
C

[Jeffrey S. Sims]

In perl you can try

perl -e 'print scalar localtime (time -1*86400),"\n"' and you can replace the 1 with whatever number you want if you need more than one day ago.

Hope it helps

[Craig Rants]

Tracey,
Thanks for the points, you pushed me over the top and presented me with what everyone says is the coolest hat to have. Thanx.

C

[Dave La Mar]

Another take on Mike's -

let yesterday=`date +%d`-1
dl