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Shell Programming and Scripting

grep tomorrow's date

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# 15  
Old 01-09-2009
If you have Perl and the Date::Manip module installed:

Code:
date +'%Y%m%d'|perl -ne'use Date::Manip;print UnixDate(DateCalc(ParseDate($_),"tomorrow"),"%d %b %Y\n")'

10 Jan 2009

# 16  
Old 01-09-2009
Hi SFYNC,

I think Date::Manip module has not been installed.

I am getting following error

Can't locate Date/Manip.pm in @INC
# 17  
Old 01-09-2009
This is what I use to get tomorrrows date....
TZ=CST-24 date +"%m %d %Y"
# 18  
Old 01-09-2009
Quote:
Originally Posted by ssachins
Hi SFYNC,

I think Date::Manip module has not been installed.

I am getting following error

Can't locate Date/Manip.pm in @INC
Try entering this command to see what Perl modules you have installed:
Code:
perl -MFile::Find=find -MFile::Spec::Functions -Tlwe'find {wanted=>sub {print canonpath $_ if /\.pm\z/},no_chdir=>1},@INC'

The output can be quite a few lines so I'd redirect it to a file or pipe it through more. You can also pipe it through grep to look for specific names:

Code:
perl -MFile::Find=find -MFile::Spec::Functions -Tlwe'find {wanted=>sub {print canonpath $_ if /\.pm\z/},no_chdir=>1},@INC'|grep Date

# 19  
Old 01-09-2009
Bob Stockler's datemath is a collection of quite useful shell scripts for date manipulations.

Pick it up from my ftp site, ftp.jpr.com.
# 20  
Old 01-09-2009
Quote:
Originally Posted by ssachins
Hi guys,

I need to find tomorrows date in date fomat and should be in variable.
as I need to grep this date in a flat file

ie. if today's date is '09 JAN 2009'

output should be '10 JAN 2009'

unix/perl script will be fine.

To manipulate dates, you should always use a standard format, preferably ISO YYYY-MM-DD, and use a function to convert it to other formats after doing any date arithmetic.

I have a library of shell functions for manipulating dates at The Dating Game.

Code:
. date-funcs
dateshift 2009-01-09 +1

# 21  
Old 01-12-2009
Hello All,

I have found another solution,

/db/pub/infra/GNUshellutils/current/bin/date gives the current date and time as Mon Jan 12 04:05:29 EST 2009

/db/pub/infra/GNUshellutils/current/bin/date -d1day which gives tomorrow's date and time.

To get the desired output, I have used following command

TDATE=`/db/pub/infra/GNUshellutils/current/bin/date -d1day | awk '{print $3,$2,$6}'`

echo $TDATE

which will give the tomorrow's date as 13 JAN 2009.

Thank you all for your support !!!
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