About format file


 
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# 1  
Old 03-02-2012
About format file

Hi all,

There's a file:
000
001
010
100

If I want to format this file to
0
1
10
100

If this file is very big, how to shorten the process time?
THANKS.
# 2  
Old 03-02-2012
Try like...

Code:
 sed 's/^[0]*//' test.txt

---------- Post updated at 05:36 AM ---------- Previous update was at 05:33 AM ----------

Sorry for the confusion..
Code:
 awk '{printf "%d\n",$0}' test.txt

This User Gave Thanks to bmk For This Post:
# 3  
Old 03-02-2012
Quote:
Originally Posted by bmk
Try like...

Code:
 sed 's/^[0]*//' test.txt

---------- Post updated at 05:36 AM ---------- Previous update was at 05:33 AM ----------

Sorry for the confusion..
Code:
 awk '{printf "%d\n",$0}' test.txt

Works.
That's cool.
Appreciate it.
# 4  
Old 03-02-2012
alternatively:
Code:
awk '{$1+=0}1' infile

Code:
awk '{print $1+0}' infile

See what is fastest..

This will probably not be fast enough:
Code:
sed 's/^0*\(.*[0-9]\)/\1/' infile

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