Bash-4.3 distribution sources and documentation

examples/scripts/shprompt

@@ -11,6 +11,22 @@
 #
 # Chet Ramey
 # chet@ins.CWRU.Edu
+#
+#  Copyright 2002 Chester Ramey
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2, or (at your option)
+#   any later version.
+#
+#   TThis program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program; if not, write to the Free Software Foundation,
+#   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 type=file
 
@@ -44,7 +60,7 @@ do
 done
 
 if [ "$OPTIND" -gt 1 ] ; then
-	shift $[$OPTIND - 1]
+	shift $(( $OPTIND - 1 ))
 fi
 
 while :