awk getline()

`awk getline()` is a built-in function in the awk programming language. This function is used to read the next input record from the input file. It allows you to process the file line by line.

Here's a simple example to demonstrate its usage:

awk '{
  # Read the next input record
  getline

  # Process the current line and the next line
  print "Current line:", $0
  print "Next line:", $0
}' your_file.txt

In this example, `getline` is called within the awk script to read the next line from `your_file.txt`. The script then prints the current line and the next line.

Please note that `getline` returns 1 if it succeeds in reading a new record, and 0 if it reaches the end of the file. You can also use `getline` with a variable to store the input record. For more advanced usage and considerations, please refer to the awk documentation.