calculate the number of days left in a month


 
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# 1  
Old 08-11-2008
calculate the number of days left in a month

does any one have any ideas how i would go about calculating the number of days left in the month from a bash script ?. I want to do some operations on a csv file according to the result
# 2  
Old 08-11-2008
usage: sh getdays.sh 08 2008

Code:
if [ -n "$1" ]
 then
  dim_m=$1
  dim_y=$2
 else
  eval `date "+dim_m=%m dim_y=%Y"`
 fi
 _DAYS_IN_MONTH=`cal $dim_m $dim_y | egrep -v '[A-Za-z]' | wc -w`

echo $_DAYS_IN_MONTH


EDIT: This only gets the number of total days in month. :P

Last edited by Ikon; 08-11-2008 at 05:59 PM..
# 3  
Old 08-11-2008
@ikon thanks for that so to calculate the number of days left in the month i used (added)

Quote:
#!/bin/bash
if [ -n "$1" ]
then
dim_m=$1
dim_y=$2
else
eval `date "+dim_m=%m dim_y=%Y"`
fi
_DAYS_IN_MONTH=`cal $dim_m $dim_y | egrep -v '[A-Za-z]' | wc -w`

echo $_DAYS_IN_MONTH

_DATE_TODAY=`date +%d`

echo $_DATE_TODAY

let SUBTRACTION=$_DAYS_IN_MONTH-$_DATE_TODAY
echo $SUBTRACTION
which seem to work great thanks alot

Kind regards dunryc
# 4  
Old 08-11-2008
simple!!!!!!!

usage scriptname month(MM) year(YYYY)

let no_of_days_left_in_month=`cal $1 $2|sed '/^$/d'|tail -1|awk '{print $NF}'`-`date "+%d"`
echo "$no_of_days_left_in_month"

Last edited by vidyadhar85; 08-11-2008 at 07:29 PM..
# 5  
Old 08-11-2008
Quote:
Originally Posted by vidyadhar85
usage scriptname month(MM) year(YYYY)

let no_of_days_left_month=`cal $1 $2|sed '/^$/d'|tail -1|awk '{print $NF}'`-`date "+%d"`
echo "$no_of_left_in_month"
I get nothing...

Code:
# sh dom.sh 08 2008
 
#

# 6  
Old 08-11-2008
fnsonlq0-/home/fnsonlq0/vidya_perl>cat calculate
let no_of_days_left_in_month=`cal $1 $2|sed '/^$/d'|tail -1|awk '{print $NF}'`-`date "+%d"`
echo "\n$no_of_days_left_in_month\n"

fnsonlq0-/home/fnsonlq0/vidya_perl>calculate 08 2008
19
fnsonlq0-/home/fnsonlq0/vidya_perl>

I AM NOT GETTING ANY PROBLEM!!!!!!!
# 7  
Old 08-11-2008
I see you changed the string:

Code:
let no_of_days_left_in_month=`cal $1 $2|sed '/^$/d'|tail -1|awk '{print $NF}'`-`date "+%d"`
echo "\n$no_of_days_left_in_month\n"

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