Hi,
I have used expr command to increment the date.
for e.g.,
case 1 :
echo $(date -d $(echo `expr 20010101 + 1`))
it returns
Tue Jan 2 00:00:00 IST 2001
case 2:
echo $(date -d $(echo `expr 20010101 - 1`))
it returns
date: invalid date `20010100'
please suggest me, how to solve the problem.
Thanks and Regards
Nanthagopal A
No need to use expr, try this instead:-
date -d'+1 day' +"%Y%m%d"
20121205
date -d'-1 day' +"%Y%m%d"
20121203
Modify the format as per your requirement.
It does so because 00 isn't a valid day. You can't just add 1 and get a sensible answer.
You can try any other date other than 1 with your code. It will work.
echo $(date -d $(echo `expr 20000102 - 1`))
Sat Jan 1 00:00:00 PST 2000