diff --git a/Fig_src/gnuplot/bin/data.awk b/Fig_src/gnuplot/bin/data.awk
index d30b01b..318af0c 100755
--- a/Fig_src/gnuplot/bin/data.awk
+++ b/Fig_src/gnuplot/bin/data.awk
@@ -1,4 +1,4 @@
-#!/sw/bin/awk -F, --exec 
+#!/opt/sw/bin/awk -F, --exec 
 
 BEGIN{
     measure=ARGV[1]
diff --git a/Fig_src/gnuplot/bin/dataInterval.awk b/Fig_src/gnuplot/bin/dataInterval.awk
index 8c78de7..da0aa95 100755
--- a/Fig_src/gnuplot/bin/dataInterval.awk
+++ b/Fig_src/gnuplot/bin/dataInterval.awk
@@ -1,4 +1,4 @@
-#!/sw/bin/awk -F, --exec 
+#!/opt/sw/bin/awk -F, --exec 
 
 # p( a<=X<=b )
 
diff --git a/Fig_src/gnuplot/bin/dataYtl.awk b/Fig_src/gnuplot/bin/dataYtl.awk
index e504ef3..5e3ea9c 100755
--- a/Fig_src/gnuplot/bin/dataYtl.awk
+++ b/Fig_src/gnuplot/bin/dataYtl.awk
@@ -1,4 +1,4 @@
-#!/sw/bin/awk -F, --exec 
+#!/opt/sw/bin/awk -F, --exec 
 
 BEGIN{
     measure=ARGV[1]