echo ${var##?}
echo ${var#*}
echo Empty:${var##*}
+echo ${var#}}_tail
+echo ${var#\}}_tail
echo ${var%cd}
echo ${var%%cd}
echo ${var%%?}
echo ${var%*}
echo Empty:${var%%*}
+echo ${var#}}_tail
+echo ${var#\}}_tail
+echo ${var%\\*}
-echo end
+a=ab}; echo ${a%\}};
+a=abc; c=c; echo ${a%${c}}
+a=ab{{c; echo ${a%`echo {{c`}
+
+echo End