last date of the previous month

Volcano · 04-22-2012, 10:31 PM

What is the command to print last date of the previous month ?

Example: current month is April. So I need a command/script to print 31-March-2012

Do you have a solution ?

Satyaveer Arya · 04-23-2012, 12:00 AM

This command will give you the last date of previous month-

Code:

# date -d "$(date -d "2012-04-23 -1 month" +%Y-%m-01) +1 month -1 day" +%Y-%m-%d

yancek · 04-23-2012, 12:15 AM

I found this which seemed like it would work but actually goes back 2 months:

Quote:

date -d "-$(date +%d) days -1 month"
Wed Feb 29 21:10:18 MST 2012

Below worked:

Quote:

date -d "-$(date +%d) days"
Sat Mar 31 21:12:30 MST 2012

Volcano · 04-23-2012, 01:12 AM

Quote:

Originally Posted by Satyaveer Arya

This command will give you the last date of previous month-

Code:

# date -d "$(date -d "2012-04-23 -1 month" +%Y-%m-01) +1 month -1 day" +%Y-%m-%d

There should be no hardcoding as you put 23 april. Could you please correct it ?

Volcano · 04-23-2012, 01:15 AM

Quote:

Originally Posted by yancek

I found this which seemed like it would work but actually goes back 2 months:

Below worked:

Your working code's output format is different than mine. Can you please correct it ?

Satyaveer Arya · 04-23-2012, 02:17 AM

Quote:

There should be no hardcoding as you put 23 april. Could you please correct it ?

Then you can put $today instead of today's date. like this-

Quote:

date -d "$(date -d "$today -1 month" +%Y-%m-01) +1 month -1 day" +%Y-%m-%d

And the output would be the same like this-

Quote:

2012-03-31

descendant_command · 04-23-2012, 02:40 AM

Quote:

Originally Posted by Volcano

Your working code's output format is different than mine. Can you please correct it ?

Dude...do you want them to come over and type it in for you too?

Satyaveer Arya · 04-23-2012, 02:45 AM

Here is a change to get the output in this format - 20-March-2012.

Quote:

date -d "$(date -d "$today -1 month" +%Y-%m-01) +1 month -1 day" +%C-%B-%Y

Rest atleast you try something on your own to correct the command to get the correct date according to your need.
Most of the guys will not spoon feed you here.

sysmicuser · 04-26-2012, 02:26 AM

Dear Satyaveer Arya,

Can you please explain us

Code:

date -d "$(date -d "$today -1 month" +%Y-%m-01) +1 month -1 day" +%C-%B-%Y

Thanks mate.

Satyaveer Arya · 04-26-2012, 05:39 AM

Hey Volcano,

I corrected the command and figured out that this command will print correctly last date of last month-

Code:

# date -d "$(date -d "$today -1 month" +%Y-%m-01) +1 month -1 day" +%d-%B-%Y

Output:
31-March-2012