How to get the difference between dates?Can i treat as string?


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting How to get the difference between dates?Can i treat as string?
# 1  
Old 10-25-2006
Compare the first column and get the second column from file.

Hi All ,

I have an output value with two columns like this...

Days User
10 A
500 B
1 C

How i can compare the first column value and passing the user name as parameter?

For example :

while read -r days
If (days<=30) ;
then
value=days/30 x100
update tableA set value = ${value} where user=A
else
update tableA set value=100 where user=B

Anyone can help me?

Thank you!!

Last edited by EDBGSK; 10-25-2006 at 10:21 AM..
# 2  
Old 10-25-2006
You can do something like that :
Code:
while read days user
do
   if [ $days -gt 30 ]
   then
      value=`expr $days / 30 \* 100`
   else
      value=100
   fi
   # update tableA set value = ${value} where user=${user}
done < inputfile


Jean-Pierre.
# 3  
Old 10-25-2006
Thank you for your answer!It's working fine!!!

I have another doubt , how i can do to the result of division , for example 10/20 not round to zero?In this case the result is 0.5 , but i got 0 as result.

Thank you again!
# 4  
Old 10-25-2006
Thanks , i already found the problem ...using

`echo "$days / 30 \* 100" | bc -l` solve my problem!!

rgds,
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Difference between two dates

Hi There I am trying to find the difference between two dates in seconds, by taking the first 10 digits of the file name itself, which I have done as shown below: current_time=`date +%s` last_login_of_tim=`date -d @1489662376 +%s` diff_sec=$(($current_time-$last_login_of_tim)) ... (5 Replies)
Discussion started by: simpsa27
5 Replies

2. Fedora

Difference of dates

I have a script which is printing date in below format while writing the logs. theDate=`date +"%m%d%Y"` theTime=`date +"%H%M%S"` echo $theDate $theTime How can i find out difference current time and above format. Appreciate your help. (6 Replies)
Discussion started by: srikanth38
6 Replies

3. Shell Programming and Scripting

Difference between 2 dates

Hi Friends, I have a file that has the contents like below: file1.txt 5,13/07/2013 23:25:25,14/07/2013 19:40:21 5,13/07/2013 23:25:25,14/07/2013 19:40:43 5,12/07/2013 23:50:50,13/07/2013 20:30:26 5,12/07/2013 23:20:24,13/07/2013 19:40:53 60,14/07/2013 00:00:00,14/07/2013 23:00:39... (5 Replies)
Discussion started by: vsachan
5 Replies

4. Shell Programming and Scripting

How to Calculate the difference between two dates?

I want the difference between two following date using scripts in terms of no.of days. How I can accomplish this. lastdate=Tue Nov 13 10:30:56 2012 currdate=Wed Dec 15 15:58:21 PAKST 2012 Ouput should be like this: Your Password will expire after = 32 Days on Wed Dec 15 15:58:21 PAKST... (1 Reply)
Discussion started by: m_raheelahmed
1 Replies

5. Shell Programming and Scripting

Difference between two dates

hi all, I need a help for below requirement. Difference between two dates"12-11-2009" and "03-25-2012" (mm-dd-yy format") in weeks and days and hours Please help me for this. Thanks in adv.... I am working in AIX, so dont have below command:- date --version (2 Replies)
Discussion started by: gani_85
2 Replies

6. Shell Programming and Scripting

Difference between two dates

Hi! I have two parameters like this: YYYY-MM-DD YYYY-MM-DD My question is, there is a direct command for get the elapsed time between the 2 dates, or I have to find another way? Thx! (1 Reply)
Discussion started by: MalaTomi
1 Replies

7. Shell Programming and Scripting

Perl difference between dates

Hi, Is there any way I can get the difference between two dates in terms of days? I have used this method so far, but I cant format it in terms of days. @a=&DateCalc($date1,$date2,0); The o/p that I am getting is sort of like this: +0:0:0:4:0:0:0 I just want to get 4 days as an o/p.... (1 Reply)
Discussion started by: King Nothing
1 Replies

8. Shell Programming and Scripting

Difference between two dates.

Hi all. My question may seems to be similar to one that already been here. But i need a little other solution. I have two dates in format dd/mm/yyyy. I need to find number of days between them. I need to do it in bash script. I am running on Solaris machine and have cutted 'date' command version... (1 Reply)
Discussion started by: kukuruku
1 Replies

9. Shell Programming and Scripting

Difference between two dates in no of days ???

Hi All How to get the difference between two dates in no of days ??? My date format is like this YYYY/MM/DD. I have to get the no of days between two dates in the given format. I tried to search the forum but nothing came up similar to my requitement. Your help will be appreciated. ... (1 Reply)
Discussion started by: csaha
1 Replies

10. Shell Programming and Scripting

Difference between two dates...

Hi All, Wish you a Happy New year... I have to find the difference between two dates, the result should be the number of days. I have seen the "datecalc" function. Its good, can I have any other alternative. Thanks in Advance Raju (4 Replies)
Discussion started by: rajus19
4 Replies
Login or Register to Ask a Question