Converting date +%j into integer


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Converting date +%j into integer
# 8  
Old 01-14-2014
Or make bash accept it as a decimal value by preceding it with the base 10# indicator:
Code:
let result=10#$Var1+$Var2
echo $Var1 plus $Var2 equals $result
014 plus 2 equals 16

# 9  
Old 01-14-2014
Dear Scrutinizer,

I am a fool. How did I not think of that? Smilie

Perhaps I should have done a quick loop to test it out too. How embarrassing. Smilie

I suppose I could trim the possible first zero twice like this:-
Code:
typeset -Z3 testdate=1
while [ $testdate -le 370 ]
do
   Var1="${testdate#0}"            # Trim first zero only if it exists
   Var1="${Var1#0}"                # Trim off a second zero if that exists
   echo $testdate $Var1
   ((testdate=$testdate+1))
done

Is that more expensive? It's a little easier to read than yours, but I'm prepared to be converted if there is a cost, especially as people may want to use this in a loop for all sorts of things.


Robin

Last edited by rbatte1; 01-14-2014 at 07:32 AM.. Reason: Grammar
# 10  
Old 01-14-2014
Haha, you're being too hard on yourself Smilie I agree your suggestion looks more readable and I don't think it is more expensive.
This User Gave Thanks to Scrutinizer For This Post:
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Converting time format as Integer to seconds

Hello, How can we convert date like format 20181004171050 in seconds ? I can able to convert till date but failing for HHMMSS. date -d "20181004" "+%s" output as 1538596800 . But when i add hhmmss it is failing date -d "20181004172000" "+%s" result Invalid date Kindly guide. Regards (16 Replies)
Discussion started by: sadique.manzar
16 Replies

2. Shell Programming and Scripting

Converting String To Integer/Float (weird case)

Hi guys, I'm new here. I have a problem at work. One of our scripts was eventually having a bug and only detected recently. Here's the issue and background: Bash Script which calls AWK script Awk script returns a string as per below (example):var1='00000-123'So, when we convert it, the... (18 Replies)
Discussion started by: sekfarok
18 Replies

3. Shell Programming and Scripting

Converting string to integer

I have a function that is supposed to check for user processes and wait for 0 count before exiting the function. I am sure I have more than one issue in my code, but the stumbling block right now is that I am trying to convert the value of my variable from a string to integer. process_count... (10 Replies)
Discussion started by: MIA651
10 Replies

4. Shell Programming and Scripting

Converting a date to friday date and finding Min/Max date

Dear all, I have 2 questions. I have a file with many rows which has date of the format YYYYMMDD. 1. I need to change the date to that weeks friday date(Ex: 20120716(monday) to 20120720). Satuday/Sunday has to be changed to next week friday date too. 2. After converting the date to... (10 Replies)
Discussion started by: 2001.arun
10 Replies

5. Shell Programming and Scripting

Converting Month into Integer

okay so i run an openssl command to get the date of an expired script. Doing so gives me this: enddate=Jun 26 23:59:59 2012 GMT Then i cut everything out and just leave the month which is "Jun" Now the next part of my script is to tell the user if the the certificate is expired or not... (6 Replies)
Discussion started by: shade917
6 Replies

6. Shell Programming and Scripting

Converting decimal to integer

The shell mentioned below will show a warning if the page takes more than 6 seconds to load. The problem is that myduration variable is not an integer. How do I convert it to integer? myduration=$(curl http://192.168.50.1/mantisbt/view.php?id=1 -w %{time_total}) > /dev/null ; ] && echo... (3 Replies)
Discussion started by: shantanuo
3 Replies

7. Shell Programming and Scripting

Converting integer to String

Hi everyone, I would like to know how to convert an integer to a string. for instance if i=1 i would like to creat a variable called constant1. i want to do this in a for loop so for each value of i, i create a new variable such as constant2, constant3,... and so on. for i in 1 2 3 do ... (1 Reply)
Discussion started by: ROOZ
1 Replies

8. UNIX for Dummies Questions & Answers

Converting a String variable into Integer

Hi, I am passing a variable to a unix function. However when I try to assign the value to another variable like typeset -i I_CACHE_VAL=$2 Is this because of String to Integer conversion? I get an error. Please help me with thsi. Thanks (2 Replies)
Discussion started by: neeto
2 Replies

9. Shell Programming and Scripting

Converting a decimal into integer

Hi all, I'm trying to convert a decimal number into an integer number; I'm doing this: n=`echo |awk '{ print "'"$mem"'"*10}'` where the variable mem is equal to 3.7 I'd like to obtain 37, but the expression above gives me 30. Help please!!!! thx a lot (4 Replies)
Discussion started by: idro
4 Replies

10. Shell Programming and Scripting

command for converting string to integer

Hi ... I am trying to calculate the time needed for a command to execute.. but the resulting value is getting as string.. so i am not able to use "expr " command.. please help me to convert the value to integer so that i can proceed with my script.. Regards esham (1 Reply)
Discussion started by: esham
1 Replies
Login or Register to Ask a Question