AWK usage in shell script. Hp unix

问题

I'm unable to use the below command using shell script.

awk '{a[NR]=$0} $0~s {f=NR} END {for (i=f-B;i<=f+A;i++) print a[i]}' B=1 A=5 s="5S5SDF" testfile 

Looking for a string "5S5SDF" in testfile.

cat myscript

#!/bin/ksh

echo "The output is"

awk '{a[NR]=$0} $0~s {f=NR} END {for (i=f-B;i<=f+A;i++) print a[i]}' B=1 A=4 s=
 "5S5SDF" testfile

The system doesn't display anything, after i pause break i see error

myscript[5]: 77144447 Quit
myscript[6]: 5S5SDF:  not found

What am i missing?

来源：https://stackoverflow.com/questions/25930617/awk-usage-in-shell-script-hp-unix