CODEWITHSUNDEEP
linuxbashawk
user1654528
user1654528

Reputation: 405

How do I replace every occurance using AWK statement

How can I adjust the following code to replace every occurrence of the value set for the element, ThreadGroup.num_threads. 

Here is the code I'm trying to make work.

  awk ' BEGIN { FS = "[<|>]" }
    {
            if ($2 == "stringProp name=\"ThreadGroup.num_threads\"") {
                   $newValue
            }
            print
    }
    ' Test1.jmx

Here is the XML snippet I'm parsing.

     <ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="Thread Group" enabled="true">
    <stringProp name="ThreadGroup.num_threads">3</stringProp>
    </ThreadGroup>
    <ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="Thread Group2" enabled="true">
    <stringProp name="ThreadGroup.num_threads">3</stringProp>
    </ThreadGroup>



newValue=999999

Upvotes: 0

Views: 75

Answers (2)

karakfa
karakfa

Reputation: 67507

Perhaps this is easier with sed

$ sed -r 's/("ThreadGroup.num_threads">)([0-9]+)</\19999</g'

Upvotes: 0

F. Knorr
F. Knorr

Reputation: 3065

In your code, the variable newValue is never defined. Moreover, you do not need $ in front of your own variables.

Here is my suggestion:

awk '$0 ~ /stringProp name="ThreadGroup.num_threads"/ 
  {sub(/<stringProp name="ThreadGroup.num_threads">[0-9]+/,
       "<stringProp name=\"ThreadGroup.num_threads\">999999",
        $0)}
   {}1' inputFile

1st line: I check whether the current line contains the text stringProp name="ThreadGroup.num_threads"
2nd-4th line: If yes, I substitute the string <stringProp name="ThreadGroup.num_threads"> if it is followed by one or more numbers by the same string followed by 999999.
5th line: Finally, I output each line.

Of course you can define a variable:

awk 'BEGIN{newValue=999999}
     $0 ~ /stringProp name="ThreadGroup.num_threads"/ 
     {sub(/<stringProp name="ThreadGroup.num_threads">[0-9]+/,
          "<stringProp name=\"ThreadGroup.num_threads\">"newValue,
           $0)}
     {}1' inputFile

The output is:

 <ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="Thread Group" enabled="true">
<stringProp name="ThreadGroup.num_threads">999999</stringProp>
</ThreadGroup>
<ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="Thread Group2" enabled="true">
<stringProp name="ThreadGroup.num_threads">999999</stringProp>
</ThreadGroup>

Upvotes: 1

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