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Array to array scanning

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# 8  
Old 01-18-2018
The split statement creates an array whose elements have the values of the substrings (separated by the FS) and consecutive indices starting from 1.
The individual assignments each create an associative array (sometimes also called hash) element with an individual string index and, here, an empry value. Example:
Code:
awk 'BEGIN      {split("80 25 443 6010",Q)
                 for (i in Q) print "index:", i, ", value:", Q[i]
                 q["80"]; q["25"]; q["443"];q["6010"]
                 for (i in q) print "index:", i, ", value:", q[i]
                }
'
index: 1 , value: 80
index: 2 , value: 25
index: 3 , value: 443
index: 4 , value: 6010
index: 25 , value: 
index: 80 , value: 
index: 443 , value: 
index: 6010 , value:

With a little trick, you can create an associative array from a (separated) string:
Code:
awk 'BEGIN      {for (n=split("80 25 443 6010", q); n>0; n--) Q[q[n]] 
                 for (i in Q) print "index:", i, ", value:", Q[i]
                }
index: 25 , value: 
index: 80 , value: 
index: 443 , value: 
index: 6010 , value:

Last edited by RudiC; 01-18-2018 at 06:57 AM..
This User Gave Thanks to RudiC For This Post:
busyboy
# 9  
Old 01-18-2018
thanks RudiC

perfectly explained... Thanks again.
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