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Help needed in padding leading zeros

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Top Forums Shell Programming and Scripting Help needed in padding leading zeros
# 1  
Old 03-13-2008
Help needed in padding leading zeros
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  
Old 03-13-2008
Code:
# awk '{printf "%015s\n", $0}' file
000000000502455
000000000050255
000000000005026
000000000005027
000000000005028

# 3  
Old 03-13-2008
Code:
printf "%.16d\n" $(<tmp.txt)

# 4  
Old 03-13-2008
Thanks guys!
Jak
# 5  
Old 07-02-2008
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  
Old 07-02-2008
paddedData=`printf "%02x" 0x$hex `
# 7  
Old 07-02-2008
Try like this:

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