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Shell Programming and Scripting

Calculate date

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# 1  
Old 12-18-2011
Calculate date
Hello, i need calculate the day before in this format aammdd, for example if i have 110701 i need a script to return the value 110630.

I only know what with this comand "date %y%m%d" return the date system.

Sorry for my english, it is very bad, i know...

Thank you very much
Grettings!
# 2  
Old 12-18-2011
If you have gnu date, then try this
Code:
 
date -d "yesterday" %y%m%d

---------- Post updated at 09:05 AM ---------- Previous update was at 09:04 AM ----------

Or using perl

Code:
 
mydate=$(perl -e '@T=localtime(time-86400);printf("%02d%02d%02d",($T[5]+1900)%100,$T[4]+1,$T[3])' )
echo $mydate

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