new shell script used for test programs.

bin/exp3to2.sh

@@ -0,0 +1,20 @@
+#/bin/sh
+#
+#  This sed script replaces 3 character exponents 
+#  starting with 0 with 2 characters
+#     e-0xx -> e-xx
+#     e0xx -> exx
+#     E-0xx -> E-xx
+#     E0xx -> Exx
+#         where
+#           x is a digit
+#
+#   It takes one argument, the file to be operated on.
+#   And, it writes to standard out. It may be used to do a 
+#   replacement in place.
+#
+cp $1 .exp.txt
+cat .exp.txt | sed 's/\([eE]-\)\(0\)\([0-9][0-9]\)/\1\3/g' | \
+               sed 's/\([eE]\)\(0\)\([0-9][0-9]\)/\1\3/g'  | \
+               sed 's/\([eE]+\)\(0\)\([0-9][0-9]\)/\1\3/g' 
+rm .exp.txt