Could anyone let me know how to concatenate year and previous month in Unix Using date command

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Occasional Contributor
Posts: 6

Could anyone let me know how to concatenate year and previous month in Unix Using date command

Could anyone let me know how to concatenate year and previous month in Unix Using date command

Super User
Posts: 13,084

Re: Could anyone let me know how to concatenate year and previous month in Unix Using date command

Posted in reply to laxmanpai

Is this related to a UNIX command or within a SAS data set?

If the later, are your values numeric or character? What do you want the output to look like?

Occasional Contributor
Posts: 6

Re: Could anyone let me know how to concatenate year and previous month in Unix Using date command

This is related to unix.

I would want the value as abc.201503.txt when i run a report in the month of April.

Is there any date command to eexecute this.

Laxman

Super User
Posts: 9,611

Re: Could anyone let me know how to concatenate year and previous month in Unix Using date command

Posted in reply to laxmanpai

You need the GNU version of date; some UNIXes (eg AIX 5.3) have a default date command that does not include all the capabilities of GNU date.

Call it like that:

date -d "1 month ago" +%Y%m

Be careful: if you call that on March 31st, you still get 201503, because February did not have a 31st, and you land on March 3.

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