Help needed in padding leading zeros

Shell Programming and Scripting
1

Hi all,
I have file with numeric values. I need to pad each value with leading zeros such that total lenght of each value is 16.

Example:
cat tmp.txt
502455
50255
5026
5027
5028

Output
0000000000502455
0000000000050255
0000000000005026
0000000000005027
0000000000005028

Any help is appreciated
Thanks,
Jak

2 
# awk '{printf "%015s\n", $0}' file
000000000502455
000000000050255
000000000005026
000000000005027
000000000005028
3 
printf "%.16d\n" $(<tmp.txt)
4

Thanks guys!
Jak

5

How do i pad the hexadecimal values with leading zeroes

hex=`echo "obase=16;$data" | bc`
paddedData=`printf "%s" $hex `
echo $paddedData

results in
0
1
9
A

i want
00
01
09
0A

Any help is appreciated
JAK

6

paddedData=`printf "%02x" 0x$hex `

7

Try like this:

"/" > x=A
"/" > echo $x | awk '{printf "%02s\n",$0}'
0A
"/" > x=9
"/" > echo $x | awk '{printf "%02s\n",$0}'
09
8

I am running a simple test on Cygwin and having this problem. Can someone provide me a fix or alternative?

#!/bin/ksh

data=10
printf "%02s" $data

data=A
printf "%02s" $data

The result should be 10 and 0A

But i am getting
printf: "%02s": invalid conversion specification
0A

So it seems like it is not working when data=10

Stuck again :frowning:
JAK

9

%02s is not a valid print format specification for a string in ksh

10

No luck with my suggestion? Seems to work fine for me under bash.

11

fpmurphy,
Why is it working in bash and not ksh? Is there a alternative i can acheive in ksh instead?

i basically want to pad with leading 0

no hexadecimal here; straight up strings
data=10; output should be 10
data=A; output should be 0A
data=2; output should be 02

i tried in bash and its working. I need to get this going in ksh
Please help
JAK

12

Again, this issue with ksh is just only when i run on Cygwin - i have installed pdksh package.

13

jakSun8, no need to PM me, and you still don't appear to have tried my suggestion, which works in bash, ksh (under HP-UX and Linux), ...