Do not require bash -- BSD sh(1) is perfectly capable of executing
this script.

While here, replace use of perl in removal of some characters from
streams with the much lighter tr(1) invocations. Strip out
carriage-returns (\r) characters from remote printer's responses too.

Remove useless braces around variable-names.

	-mi

--- foomatic-getpjloptions.in.orig	2018-03-02 19:15:50 UTC
+++ foomatic-getpjloptions.in
@@ -1,4 +1,4 @@
-#!@SH@
+#!/bin/sh
 #
 # Polls PJL options from local or network printers
 #
@@ -22,8 +22,7 @@
 
 NC=@NC@
 CAT=@CAT@
-PRINTF=@PRINTF@
-PERL=@PERL@
+PRINTF=printf	# sh builtin
 
 usage(){
     cat <<EOF ;
@@ -60,15 +59,16 @@ esac
 	$PRINTF "@PJL INFO CONFIG\r\n"
 	$PRINTF "\033%%-12345X"
     ) | if [ ${2:-X} != X ]; then
-	# We have two arguments, do ethernet printer request
+	# We have two arguments, do network printer request
 	# Poll the printer's answer and filter out the newpage characters
-	${NC} -w 3 ${1} ${2} 2>/dev/null | ${PERL} -p -e "s/\014//"
+	# as well as the carriage-returns (\r or, in octal, 015)
+	$NC -w 3 $1 $2 2>/dev/null | tr -d "\015\014"
     else
 	# We have one argument, do local printer request
 	# Send commands to printer port
-	${CAT} > ${1}
+	$CAT > $1
 	# Wait ten seconds for the printer to process the request
 	sleep 10
 	# Poll the printer's answer and filter out the newpage and CR characters
-	${CAT} < ${1} | ${PERL} -p -e "s/[\015\014]//"
+	exec tr -d "\015\014" < $1
     fi