bash - Override variables in awk scripts in command line/mother scripts -

if have awk script (average.sh) , use process lot of inputfiles

awk -f\" 'begin{print}               last != $4""$8 && last{            print line,exp(c/d)            c=d=0}                     { # block process each line of infile    c += log($(nf-1)+0)            d++                            $(nf-1)=""                     line=$0                        last=$4""$8}                  end{ # block triggers after complete file read        # print last average cannot trigger during        # previous block       print line,exp(c/d)}' ${var2:=infile} 

now if do

export var2="infile4" | sh average.sh 

the "average.sh" still process "infile" instead of "infile4".

following best answers in override variable in bash script command line , try

var2=infile4 ./geometric_average_real 

this give error of "var2=infile: command not found."

our final goal write loops

for (x=1; x<=3; x++)   sh average.sh infile${x}  done 

so loop shall process

sh average.sh infile1 sh average.sh infile2 sh average.sh infile3 

thanks comments!

if average.sh script working single infile, call script list of files process:

#!/bin/bash  test -n "$1" || { echo "error, insufficient input"; exit 1; }  avgscript="/path/to/average.sh"  test -x "$avgscript" || { echo "error: required script `$avgscript` not found or not executable"; exit 1; }  in "$@";      avgscript "$i"  done 

save file runavg.sh , call runavg.sh file1 file2 file2