#!/bin/bash

if [ $# -ne 2 ]; then
  echo "Usage: max_convert <FILE.max> <PATTERN>"
  exit 2
fi
MAX_FILE=$1
PATTERN=$2

awk -vp=$PATTERN '{
  if($0=="# BEGIN DATA") begindata=1;
  if(begindata==1) {
    if($1=="#") {
      if($3=="frequency") {
        print "# abs_time frequency slowness azimuth ellipticity noise power valid"
      } else {
        print
      }
    } else if($3==p) {
      print $1,$2,$4,$5,$6,$7,$8,$9
    }
  } else {
    print
  }
}' $MAX_FILE
