Shell scripting - split xml into multiple files

Question

Am trying to split a big xml file into multiple files, and have used the following code in AWK script.

// {
        rfile=\"fileItem\" count          


        

Answer 1

I would not use getline. (I even read in an AWK book that it is not recommended to use it.) I think, using global variables for state it is even simpler. (Expressions with global variables may be used in patterns too.)

The script could look like this:

test-split-xml.awk:

// {
  collect = 1 ; buffer = "" ; file = "fileItem_"count".xml"
  ++count
}

collect > 0 {
  if (buffer != "") buffer = buffer"\n"
  buffer = buffer $0
}

collect > 0 && /.+<\/name>/ {
  # cut "..."
  i = index($0, "") ; file = substr($0, i + 6)
  # cut "..."
  i = index(file, "") ; file = substr(file, 1, i - 1)
  file = file".xml"
}

/<\/fileItem>/ {
  collect = 0;
  print file
  print "" >file
  print buffer >file
}

I prepared some sample data for a small test:

test-split-xml.xml:

  
    
      1
      X1
    
  
  
    2
    X2
  
  
    2
    
  
   other input 

... and got the following output:

$ awk -f test-split-xml.awk test-split-xml.xml
X1.xml
X2.xml
fileItem_2.xml

$ more X1.xml 

    
      1
      X1
    

$ more X2.xml

  
    2
    X2
  

$ more fileItem_2.xml 

  
    2
    
  

$

The comment of tripleee is reasonable. Thus, such processing should be limited to personal usage because different (and legal) formattings of XML files could cause errors in this script processing.

As you will notice, there is no next in the whole script. This is intentionally.