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Keeping the number intact

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# 8  
Old 01-06-2012
Getting confused on the difference between the following two things

Code:
sed 's/\([0-9][0-9.]*\)/ & /g'
 sed 's/\([0-9][0-9]*[.]*[0-9]*\)/ & /g'

They both seem to work in my case. I tried on the files below

Code:
n02-z30-dsr65-terr11-dc0.05-4x3smp.cmd
n02-z30-dsr65-terr12.1-dc0.05-4x3smp.cmd
n02-z30-dsr65-terr123.12-dc0.05-4x3smp.cmd

# 9  
Old 01-06-2012
When 2 solutions works, use the most simple one.

---------- Post updated at 02:25 PM ---------- Previous update was at 02:23 PM ----------

In case you get a version number like :

Code:
1.0.2.4

the first solution will still match it into 1 single matching , the second solution won't.
Code:
$ echo "1.0.2.4" | sed 's/\([0-9][0-9.]*\)/ & /g'
 1.0.2.4 
$ echo "1.0.2.4" | sed 's/\([0-9][0-9]*[.]*[0-9]*\)/ & /g'
 1.0 . 2.4

Just for a better display understanding :
Code:
$ echo "1.0.2.4" | sed 's/\([0-9][0-9.]*\)/_&_/g'
_1.0.2.4_
$ echo "1.0.2.4" | sed 's/\([0-9][0-9]*[.]*[0-9]*\)/_&_/g'
_1.0_._2.4_

So far in your file you don't have numeric string with multiple dot in it :
that is the reason why didn't you notice the difference.
Last edited by ctsgnb; 01-06-2012 at 09:33 AM..
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