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Full Discussion: Help deleting leading zeros in a file
Top Forums Shell Programming and Scripting Help deleting leading zeros in a file Post 302856553 by kcpoole on Tuesday 24th of September 2013 08:07:25 AM
Old 09-24-2013
Help deleting leading zeros in a file
I have a list of numbers extracted and need to delete the leading zeros from them, but when i do so, the command I am using also deletes numbers that end in Zero as well. eg 10, 20, 30, etc

this is part of a larger script and the only way I can think of is to try and detect the 10,20 30 etc in the first part of a if statement then deal with the remainder but that i think is quite messy as there may be many of them

Ideas?

My input to check is like this file below and trying to process with this code snipopet
Code:
file="leadingzero.txt"     # input filename
while read line 
    do
        wardevent=${line##*[!1-9]}                     # remove leading Zero from the line
echo $wardevent
done <"$file"

File:
Code:
001
002
003
004
005
006
007
008
009
010
011
012
019
020
021

Thanks
Ken
Last edited by Scott; 09-26-2013 at 08:58 AM.. Reason: Removed attachment; not necessary for such a small file
 

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