Shell Programming and Scripting

+ + /usr/bin/printf %'.*f\n 2 345987
printf: bad conversion
printf: bad conversion
output_string=.*f
.*f
+ printf number_of_positions=%d\n 2
number_of_positions=2
+ printf input_string=%s\n 345987
input_string=345987
+ printf Output=%s\n\n .*f
.*f
Output=.*f
.*f

export LC_NUMERIC=en_US
$ echo "a" | awk '{printf ("%'\''2.2f",10000.1717)}'

echo "" | awk -v v1="10" '{printf ("%'\''2.2f",v1)}'

#!/bin/ksh
for number_of_positions in 2 4
do	for input_string in 345987 1345987
	do	printf "%s %s\n" $number_of_positions $input_string
	done
done | awk -v fmt="%'.*f\n" '
{	printf("\nDecimal Places=%s\nInput=%s\nOutput=", $1, $2)
	printf(fmt, $1, $2)
}'

#!/bin/ksh
for number_of_positions in 2 4
do	for input_string in 345987 1345987
	do	awk -v fmt="%'.${number_of_positions}f\n" -v v="$input_string" 'BEGIN{printf(fmt, v)}'
	done
done

Decimal Places=2
Input=345987
Output=345987.00
Decimal Places=2
Input=1345987
Output=1345987.00
Decimal Places=4
Input=345987
Output=345987.0000
Decimal Places=4
Input=1345987
Output=1345987.0000

345987.00
1345987.00
345987.0000
1345987.0000