Example script containing several important operations in bash

bash_read_pipe_withawk.sh

#!/bin/bash
# How to skip the first line while using read, 
# how to check a value and increment based on the value of another variable,
# pipe a value from bash to awk to parse the line and get the value as a variable to use in another bash command

PREVCINDEX=99999
i=1  # skip the first line (part 1)
while read LINE
do
    test $i -eq 1 && ((i=i+1)) && continue # skip the first line (part 2)
    CINDEX=$(echo LINE|awk '{print $1}')

    if [ ${VAR01} -ne ${IND} ]; then
        ROI_NR=1
    else
        ROI_NR=$((ROI_NR + 1))
    fi
    
    
    #X=$(echo $LMAXLINE | awk '($1 !~ /Cluster/){print $3}')# if you want a not equal statement in AWK
    X=$(echo $LINE|awk '{print $3}') # select the value form this line on the 3rd column for the variable
    PREVCINDEX=$CINDEX

done < ${MYFILE}