awk data validation

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09-27-2005

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awk data validation

Hi ,
This is a general doubt....
Is there any way to do data validation inside an awk script..
Let me make it more clear....
I have a string variable inside awk script .. Is there any way to check whether it is number or string etc...

Thanks in advance.
Shihab

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09-27-2005

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Add zero...

Code:

awk 'BEGIN{
  v="123"
  if ((v+0)==v) printf "%s is a number\n", v
  v="abc"
  if ((v+0)!=v) printf "%s is a string\n", v
}'

123 is a number
abc is a string

Ygor

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