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How to round up on fives in unix?

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Top Forums Shell Programming and Scripting How to round up on fives in unix?
# 8  
Old 11-20-2009
Code:
for i in "$@" ;do
   x=$((i-${i#?}))
   printf "%12d ---- %d\n" $i $((${x%%0*}+1))${x#?}
done

Code:
$> ./test 15 99 12345678  44444445  1445
          15 ---- 20
          99 ---- 100
    12345678 ---- 20000000
    44444445 ---- 50000000
        1445 ---- 2000

Last edited by Scrutinizer; 11-20-2009 at 04:51 PM..
# 9  
Old 11-20-2009
Quote:
Originally Posted by Scrutinizer
Code:
echo $*|while read i ;do
   x=$((i-${i#?}))
   printf "%12d ---- %d\n" $i $((${x%%0*}+1))${x#?}
done


Naming your script xx.sh, this is what I get:

Code:
$ xx.sh 12
          12 ---- 20
$ xx.sh 16
          16 ---- 20
$ xx.sh 120
         120 ---- 200
$ xx.sh 120 23
/home/chris/scripts/xx.sh: line 3: 120 23: syntax error in expression (error token is "23")

Not what was wanted.

And, with your newer code:

Quote:
Originally Posted by Scrutinizer
Code:
for i in "$@" ;do
   x=$((i-${i#?}))
   printf "%12d ---- %d\n" $i $((${x%%0*}+1))${x#?}
done


Code:
$ xx.sh 120 23
         120 ---- 200
          23 ---- 30

Still wrong.
# 10  
Old 11-20-2009
Hi CFA,

I did post the wrong loop and corrected it, but you were faster Smilie.
I do believe however, that my script is correct and yours is not in this case.

I think the OP's third example contains a mistake and 12345678 should turn into 20000000 instead of 10000000

S.
# 11  
Old 11-20-2009
Quote:
Originally Posted by Scrutinizer
Hi CFA,

I did post the wrong loop and corrected it, but you were faster Smilie.
I do believe however, that my script is correct and yours is not in this case.

I think the OP's third example contains a mistake and 12345678 should turn into 20000000 instead of 10000000

That is not rounding to the nearest value.

12345678 is nearer 10000000 than 20000000.

12 is nearer to 10 than to 20.
# 12  
Old 11-20-2009
OK, from the examples and his phrasing I gathered the OP meant rounding up. On rereading it is a bit confusing. The last two examples are rounding up. Actually I think it is because of this phrase:
Quote:
if it is greater than ten round to the nearest 10
Last edited by Scrutinizer; 11-20-2009 at 05:18 PM..
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