This patch series changes everywhere the back-quotes construct for command

substitution with the $( ... ).

The backquoted form is the historical method for command substitution,
and is supported by POSIX. However, all but the simplest uses become
complicated quickly. In particular, embedded command substitutions
and/or the use of double quotes require careful escaping with the backslash
character. Because of this the POSIX shell adopted the $(…) feature from
the Korn shell. Because this construct uses distinct
opening and closing delimiters, it is much easier to follow.
Also now the embedded double quotes no longer need escaping.

2 files changed, 9 insertions, 9 deletions

diff --git a/autogen.sh b/autogen.sh
index 996a74c..71b782c 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 #
-# $Id: autogen.sh,v 1.29 2013/07/03 16:50:20 devzero2000 Exp $
+# $Id: autogen.sh,v 1.30 2014/03/28 17:10:13 devzero2000 Exp $
 # autogen.sh: autogen.sh script for popt projects
 #
 # Copyright (c) 2010-2011 Elia Pinto <devzero2000@rpm5.org>
@@ -106,7 +106,7 @@ check_versions() {
 
   while read app req_ver; do
     # Honor $APP variables ($TAR, $AUTOCONF, etc.)
-    appvar=`echo $app | tr '[a-z]' '[A-Z]'`
+    appvar=$(echo $app | tr '[a-z]' '[A-Z]')
     test "$appvar" = TAR && appvar=AMTAR
     eval "app=\${$appvar-$app}"
     inst_ver=$(get_version $app)
@@ -159,10 +159,10 @@ else
 fi
 
 # Libtool
-libtoolize=`which glibtoolize 2>/dev/null`
+libtoolize=$(which glibtoolize 2>/dev/null)
 case $libtoolize in
 		/*) export LIBTOOL=glibtool;;
-		*)  libtoolize=`which libtoolize 2>/dev/null`
+		*)  libtoolize=$(which libtoolize 2>/dev/null)
 	case $libtoolize in
     	/*) ;;
     	*)  libtoolize=libtoolize
diff --git a/testit.sh b/testit.sh
index 0af5f48..eb32d85 100755
--- a/testit.sh
+++ b/testit.sh
@@ -30,14 +30,14 @@ if [ -z "${valgrind_environment}" ]
 then
 	MALLOC_CHECK_=3
 	export MALLOC_CHECK_
-	[ -n "${RANDOM}" ] && MALLOC_PERTURB_=`expr \( $RANDOM % 255 \) + 1 `
+	[ -n "${RANDOM}" ] && MALLOC_PERTURB_=$(expr \( $RANDOM % 255 \) + 1 )
 	export MALLOC_PERTURB_
 	#
 	if [ -z "${MALLOC_PERTURB_}" ]  # RANDOM is a bashism
 	then
-		r=`ps -ef | cksum | cut -f1 -d" " 2>/dev/null`
+		r=$(ps -ef | cksum | cut -f1 -d" " 2>/dev/null)
 		[ -z "${r}" ] && r=1234567890
-		MALLOC_PERTURB_=`expr \( $r % 255 \) + 1 `
+		MALLOC_PERTURB_=$(expr \( $r % 255 \) + 1 )
 		export MALLOC_PERTURB_
 	fi
 fi
@@ -49,7 +49,7 @@ run() {
 
     echo Running test $name.
 
-    result=`HOME=$builddir $builddir/$prog $* 2>&1`
+    result=$(HOME=$builddir $builddir/$prog $* 2>&1)
 
     if [ "$answer" != "$result" ]; then
 	echo "Test \"$prog $*\" failed with: \"$result\" != \"$answer\" "
@@ -81,7 +81,7 @@ run_diff() {
     rm $out $diff_file
 }
 
-builddir=`pwd`
+builddir=$(pwd)
 #srcdir=$builddir
 cd ${srcdir}
 test1=${builddir}/test1