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rbgnow_110245's avatar
rbgnow_110245
Icon for Nimbostratus rankNimbostratus
Jan 16, 2009

Get multiple fields from string

How to get multiple fields from a string variable.     Example:   echo "a.b.c.d.e.f"|cut -d. -f2,4-6   b.d.e.f     trying to find the similar feature using getfield lik...
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hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Jan 19, 2009
You could use getfield for each field, but I think scan would be more efficient. Here are a few examples: 

 
 when RULE_INIT { 
  
    set ip 11.22.33.44 
    scan $ip {%d.%d.%d.%d} a b c d 
    log local0. "$a, $b, $c, $d" 
  
    set str "e f g h" 
    scan $str {%s %s %s %s} a b c d 
    log local0. "$a, $b, $c, $d" 
  
    set str "i 2 k 4" 
    scan $str {%s %s %s %s} a b c d 
    log local0. "$a, $b, $c, $d" 
 }

And the log output:

Rule : 11, 22, 33, 44

Rule : e, f, g, h

Rule : i, 2, k, 4

Aaron