diff --git a/arch-nspawn.in b/arch-nspawn.in
index 9787415..7481d82 100644
--- a/arch-nspawn.in
+++ b/arch-nspawn.in
@@ -33,7 +33,7 @@ while getopts 'hC:M:c:' arg; do
 		M) makepkg_conf="$OPTARG" ;;
 		c) cache_dir="$OPTARG" ;;
 		h|?) usage ;;
-		*) error "invalid argument '$arg'"; usage ;;
+		*) error "invalid argument '%s'" "$arg"; usage ;;
 	esac
 done
 shift $(($OPTIND - 1))
diff --git a/archbuild.in b/archbuild.in
index bb2577d..8339aef 100644
--- a/archbuild.in
+++ b/archbuild.in
@@ -45,13 +45,13 @@ check_root
 makechrootpkg_args+=("${@:$OPTIND}")
 
 if ${clean_first} || [[ ! -d "${chroots}/${repo}-${arch}" ]]; then
-	msg "Creating chroot for [${repo}] (${arch})..."
+	msg "Creating chroot for [%s] (%s)..." "${repo}" "${arch}"
 
 	for copy in "${chroots}/${repo}-${arch}"/*; do
 		[[ -d $copy ]] || continue
-		msg2 "Deleting chroot copy '$(basename "${copy}")'..."
+		msg2 "Deleting chroot copy '%s'..." "$(basename "${copy}")"
 
-		lock 9 "$copy.lock" "Locking chroot copy '$copy'"
+		lock 9 "$copy.lock" "Locking chroot copy '%s'" "$copy"
 
 		subvolume_delete_recursive "${copy}"
 		rm -rf --one-file-system "${copy}"
@@ -74,5 +74,5 @@ else
                 pacman -Syu --noconfirm || abort
 fi
 
-msg "Building in chroot for [${repo}] (${arch})..."
+msg "Building in chroot for [%s] (%s)..." "${repo}" "${arch}"
 exec makechrootpkg -r "${chroots}/${repo}-${arch}" "${makechrootpkg_args[@]}"
diff --git a/archco.in b/archco.in
index 6088b8e..77cc8c4 100644
--- a/archco.in
+++ b/archco.in
@@ -6,7 +6,7 @@ m4_include(lib/common.sh)
 scriptname=${0##*/}
 
 if [[ -z $1 ]]; then
-	echo 'Usage: '$scriptname' <package name>...'
+	printf 'Usage: %s <package name>...\n' "$scriptname"
 	exit 1
 fi
 
diff --git a/archrelease.in b/archrelease.in
index c56367f..3b11652 100644
--- a/archrelease.in
+++ b/archrelease.in
@@ -59,7 +59,7 @@ done
 known_files=("${known_files[@]/%/@}")
 
 for tag in "$@"; do
-	stat_busy "Copying ${trunk} to ${tag}"
+	stat_busy "Copying %s to %s" "${trunk}" "${tag}"
 
 	if [[ -d repos/$tag ]]; then
 		declare -a trash
diff --git a/checkpkg.in b/checkpkg.in
index da69df2..fbd30d3 100644
--- a/checkpkg.in
+++ b/checkpkg.in
@@ -70,8 +70,8 @@ for _pkgname in "${pkgname[@]}"; do
 		msg "Sonames differ in $_pkgname!"
 		echo "$diff_output"
 	else
-		msg "No soname differences for $_pkgname."
+		msg "No soname differences for %s." "$_pkgname"
 	fi
 done
 
-msg "Files saved to $TEMPDIR"
+msg "Files saved to %s" "$TEMPDIR"
diff --git a/commitpkg.in b/commitpkg.in
index 6cf562f..d31f6ba 100644
--- a/commitpkg.in
+++ b/commitpkg.in
@@ -136,7 +136,7 @@ for _arch in ${arch[@]}; do
 		fullver=$(get_full_version $_pkgname)
 
 		if ! pkgfile=$(find_cached_package "$_pkgname" "$fullver" "${_arch}"); then
-			warning "Skipping $_pkgname-$fullver-$_arch: failed to locate package file"
+			warning "Skipping %s: failed to locate package file" "$_pkgname-$fullver-$_arch"
 			skip_arches+=($_arch)
 			continue 2
 		fi
@@ -144,7 +144,7 @@ for _arch in ${arch[@]}; do
 
 		sigfile="${pkgfile}.sig"
 		if [[ ! -f $sigfile ]]; then
-			msg "Signing package ${pkgfile}..."
+			msg "Signing package %s..." "${pkgfile}"
 			if [[ -n $GPGKEY ]]; then
 				SIGNWITHKEY="-u ${GPGKEY}"
 			fi
@@ -184,7 +184,7 @@ fi
 if [[ "${arch[*]}" == 'any' ]]; then
 	if [[ -d ../repos/$repo-i686 && -d ../repos/$repo-x86_64 ]]; then
 		pushd ../repos/ >/dev/null
-		stat_busy "Removing $repo-i686 and $repo-x86_64"
+		stat_busy "Removing %s and %s" "$repo-i686" "$repo-x86_64"
 		svn rm -q $repo-i686
 		svn rm -q $repo-x86_64
 		svn commit -q -m "Removed $repo-i686 and $repo-x86_64 for $pkgname"
@@ -194,7 +194,7 @@ if [[ "${arch[*]}" == 'any' ]]; then
 else
 	if [[ -d ../repos/$repo-any ]]; then
 		pushd ../repos/ >/dev/null
-		stat_busy "Removing $repo-any"
+		stat_busy "Removing %s" "$repo-any"
 		svn rm -q $repo-any
 		svn commit -q -m "Removed $repo-any for $pkgname"
 		stat_done
diff --git a/crossrepomove.in b/crossrepomove.in
index 0d1945c..14c264e 100644
--- a/crossrepomove.in
+++ b/crossrepomove.in
@@ -6,7 +6,7 @@ m4_include(lib/common.sh)
 scriptname=${0##*/}
 
 if [[ -z $1 ]]; then
-	echo 'Usage: '$scriptname' [pkgbase]'
+	printf 'Usage: %s [pkgbase]\n' "$scriptname"
 	exit 1
 fi
 
@@ -40,13 +40,13 @@ setup_workdir
 
 pushd $WORKDIR >/dev/null
 
-msg "Downloading sources for ${pkgbase}"
+msg "Downloading sources for %s" "${pkgbase}"
 svn -q checkout -N "${target_svn}" target_checkout
 mkdir -p "target_checkout/${pkgbase}/repos"
 svn -q export "${source_svn}/${pkgbase}/trunk" "target_checkout/${pkgbase}/trunk" || die
 . "target_checkout/${pkgbase}/trunk/PKGBUILD"
 
-msg "Downloading packages for ${pkgbase}"
+msg "Downloading packages for %s" "${pkgbase}"
 for _arch in ${arch[@]}; do
 	if [[ "${_arch[*]}" == 'any' ]]; then
 		repo_arch='x86_64'
@@ -60,7 +60,7 @@ for _arch in ${arch[@]}; do
 	done
 done
 
-msg "Adding ${pkgbase} to ${target_repo}"
+msg "Adding %s to %s" "${pkgbase}" "${target_repo}"
 svn -q add "target_checkout/${pkgbase}"
 svn -q propset svn:keywords 'Id' "target_checkout/${pkgbase}/trunk/PKGBUILD"
 svn -q commit -m"${scriptname}: Moving ${pkgbase} from ${source_repo} to ${target_repo}" target_checkout
@@ -70,7 +70,7 @@ popd >/dev/null
 
 ssh "${server}" "${target_dbscripts}/db-update" || die
 
-msg "Removing ${pkgbase} from ${source_repo}"
+msg "Removing %s from %s" "${pkgbase}" "${source_repo}"
 for _arch in ${arch[@]}; do
 	ssh "${server}" "${source_dbscripts}/db-remove ${source_repo} ${_arch} ${pkgbase}"
 done
diff --git a/lddd.in b/lddd.in
index 663d8ae..f01ebf9 100644
--- a/lddd.in
+++ b/lddd.in
@@ -17,7 +17,7 @@ TEMPDIR=$(mktemp -d --tmpdir lddd-script.XXXX)
 msg 'Go out and drink some tea, this will take a while :) ...'
 #  Check ELF binaries in the PATH and specified dir trees.
 for tree in $PATH $libdirs $extras; do
-	msg2 "DIR $tree"
+	msg2 "DIR %s" "$tree"
 
 	#  Get list of files in tree.
 	files=$(find $tree -type f ! -name '*.a' ! -name '*.la' ! -name '*.py*' ! -name '*.txt' ! -name '*.h' ! -name '*.ttf' ! \
@@ -46,4 +46,4 @@ done
 # clean list
 sort -u $TEMPDIR/pacman.txt >> $TEMPDIR/possible-rebuilds.txt
 
-msg "Files saved to $TEMPDIR"
+msg "Files saved to %s" "$TEMPDIR"
diff --git a/lib/common.sh b/lib/common.sh
index 9303e2e..19aa7de 100644
--- a/lib/common.sh
+++ b/lib/common.sh
@@ -56,7 +56,7 @@ error() {
 
 stat_busy() {
 	local mesg=$1; shift
-	printf "${GREEN}==>${ALL_OFF}${BOLD} ${mesg}...${ALL_OFF}" >&2
+	printf "${GREEN}==>${ALL_OFF}${BOLD} ${mesg}...${ALL_OFF}" "$@" >&2
 }
 
 stat_done() {
@@ -142,7 +142,7 @@ get_full_version() {
 }
 
 ##
-#  usage : lock( $fd, $file, $message )
+#  usage : lock( $fd, $file, $message, [ $message_arguments... ] )
 ##
 lock() {
 	# Only reopen the FD if it wasn't handed to us
@@ -152,14 +152,14 @@ lock() {
 	fi
 
 	if ! flock -n $1; then
-		stat_busy "$3"
+		stat_busy "${@:3}"
 		flock $1
 		stat_done
 	fi
 }
 
 ##
-#  usage : slock( $fd, $file, $message )
+#  usage : slock( $fd, $file, $message, [ $message_arguments... ] )
 ##
 slock() {
 	# Only reopen the FD if it wasn't handed to us
@@ -169,7 +169,7 @@ slock() {
 	fi
 
 	if ! flock -sn $1; then
-		stat_busy "$3"
+		stat_busy "${@:3}"
 		flock -s $1
 		stat_done
 	fi
diff --git a/makechrootpkg.in b/makechrootpkg.in
index 890a359..5329f76 100644
--- a/makechrootpkg.in
+++ b/makechrootpkg.in
@@ -90,14 +90,14 @@ load_vars() {
 
 create_chroot() {
 	# Lock the chroot we want to use. We'll keep this lock until we exit.
-	lock 9 "$copydir.lock" "Locking chroot copy [$copy]"
+	lock 9 "$copydir.lock" "Locking chroot copy [%s]" "$copy"
 
 	if [[ ! -d $copydir ]] || $clean_first; then
 		# Get a read lock on the root chroot to make
 		# sure we don't clone a half-updated chroot
 		slock 8 "$chrootdir/root.lock" "Locking clean chroot"
 
-		stat_busy "Creating clean working copy [$copy]"
+		stat_busy "Creating clean working copy [%s]" "$copy"
 		if is_btrfs "$chrootdir" && ! mountpoint -q "$copydir"; then
 			subvolume_delete_recursive "$copydir" ||
 				die "Unable to delete subvolume %s" "$copydir"
@@ -118,7 +118,7 @@ create_chroot() {
 }
 
 clean_temporary() {
-	stat_busy "Removing temporary copy [$copy]"
+	stat_busy "Removing temporary copy [%s]" "$copy"
 	if is_btrfs "$chrootdir" && ! mountpoint -q "$copydir"; then
 		btrfs subvolume delete "$copydir" >/dev/null ||
 			die "Unable to delete subvolume %s" "$copydir"
diff --git a/mkarchroot.in b/mkarchroot.in
index 21a7727..1265335 100644
--- a/mkarchroot.in
+++ b/mkarchroot.in
@@ -31,7 +31,7 @@ while getopts 'hC:M:c:' arg; do
 		M) makepkg_conf="$OPTARG" ;;
 		c) cache_dir="$OPTARG" ;;
 		h|?) usage ;;
-		*) error "invalid argument '$arg'"; usage ;;
+		*) error "invalid argument '%s'" "$arg"; usage ;;
 	esac
 done
 shift $(($OPTIND - 1))
diff --git a/rebuildpkgs.in b/rebuildpkgs.in
index 75e7de0..8a141e0 100644
--- a/rebuildpkgs.in
+++ b/rebuildpkgs.in
@@ -14,8 +14,8 @@
 m4_include(lib/common.sh)
 
 if (( $# < 1 )); then
-	echo "Usage: $(basename $0) <chrootdir> <packages to rebuild>"
-	echo "  example: $(basename $0) ~/chroot readline bash foo bar baz"
+	printf 'Usage: %s <chrootdir> <packages to rebuild>\n' "$(basename "$0")"
+	printf '  example: %s ~/chroot readline bash foo bar baz\n' "$(basename "$0")"
 	exit 1
 fi
 
@@ -51,7 +51,7 @@ pkgs="$@"
 
 SVNPATH='svn+ssh://repos.archlinux.org/srv/repos/svn-packages/svn'
 
-msg "Work will be done in $(pwd)/rebuilds"
+msg "Work will be done in %s" "$(pwd)/rebuilds"
 
 REBUILD_ROOT="$(pwd)/rebuilds"
 mkdir -p "$REBUILD_ROOT"
@@ -63,11 +63,11 @@ FAILED=""
 for pkg in $pkgs; do
 	cd "$REBUILD_ROOT/svn-packages"
 
-	msg2 "Building '$pkg'"
+	msg2 "Building '%s'" "$pkg"
 	/usr/bin/svn update "$pkg"
 	if [[ ! -d "$pkg/trunk" ]]; then
 		FAILED="$FAILED $pkg"
-		warning "$pkg does not exist in SVN"
+		warning "%s does not exist in SVN" "$pkg"
 		continue
 	fi
 	cd "$pkg/trunk/"
@@ -76,14 +76,14 @@ for pkg in $pkgs; do
 
 	if ! sudo makechrootpkg -u -d -r "$chrootdir" -- --noconfirm; then
 		FAILED="$FAILED $pkg"
-		error "$pkg Failed!"
+		error "%s Failed!" "$pkg"
 	else
 		pkgfile=$(pkg_from_pkgbuild)
 		if [[ -e $pkgfile ]]; then
-			msg2 "$pkg Complete"
+			msg2 "%s Complete" "$pkg"
 		else
 			FAILED="$FAILED $pkg"
-			error "$pkg Failed, no package built!"
+			error "%s Failed, no package built!" "$pkg"
 		fi
 	fi
 done
@@ -92,7 +92,7 @@ cd "$REBUILD_ROOT"
 if [[ -n $FAILED ]]; then
 	msg 'Packages failed:'
 	for pkg in $FAILED; do
-		msg2 "$pkg"
+		msg2 "%s" "$pkg"
 	done
 fi