String operations

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# 1  
Old 07-13-2011
String operations

Hi All,

can you tell me how to drop all preceding zeros in a number. For example, if i have a numbers like 000876838347 and to make them as 876838347 and 7854762543.
# 2  
Old 07-13-2011
What is your system? What is your shell?
# 3  
Old 07-13-2011
[mute@geek ~/test]$ echo 0000007854762543 | awk '{ print $1+0 }'

[mute@geek ~/test]$ expr 0000007854762543 + 0

bash $(())
[mute@geek ~/test]$ echo $((10#0000007854762543))

This User Gave Thanks to neutronscott For This Post:
# 4  
Old 07-13-2011
Problem with numerical operations is most things assume numbers beginning in zero are octal.
This User Gave Thanks to Corona688 For This Post:
# 5  
Old 07-13-2011
Here is a solution without numerical operations:
echo '0000123040' | sed 's/^0*//'

This User Gave Thanks to Shell_Life For This Post:
# 6  
Old 07-14-2011
Thanks a bunch! its worked..
# 7  
Old 07-14-2011
If you have ksh93 then you can use builtin regexp
echo $a
echo $b


Last edited by kshji; 07-14-2011 at 01:14 PM..
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