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Shell Programming and Scripting

Date variable

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# 1  
Old 12-04-2007
Date variable
Dear all,

Today=`date +%d%m%y``

I want to decrease the date by 1. How would we do that.


Thanks.
# 2  
Old 12-04-2007
Have a look at the FAQ here
# 3  
Old 12-04-2007
does not help that much,

can u tell me some other easier way out.

thanks
# 4  
Old 12-04-2007
By 2 what? day? month? year?
Have you read the FAQ encrypted told you? It's full of examples that I do think will help you...
# 5  
Old 12-04-2007
something like this?
7daysbefor=$( date -d "-7days" +%Y-%m-%d)
yesterday=$( date -d "-1days" +%Y-%m-%d)
tomorrow=$( date -d "1days" +%Y-%m-%d)
in7days=$( date -d "7days" +%Y-%m-%d)
# 6  
Old 12-04-2007
I can decrease the date by 1 for you, but...you must supply 5 lbs of plutonium for the flux capacitor.



:P
# 7  
Old 12-04-2007
if you just want to roll back 1 day: for HP or solaris:

Code:
TZ=aaa24

on Solaris you can give it more than 24 hrs, HP that's are far as you can go
with this date hack. Other brands of UNIX unsure if this would work, but suspect it will.

best way: 86400 is # seconds in 24 hrs.

Code:
perl -e 'print localtime(time() - 86400) . "\n" '

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