diff --git a/ex01/hello_world.sh b/ex01/hello_world.sh
new file mode 100755
index 0000000..462292e
--- /dev/null
+++ b/ex01/hello_world.sh
@@ -0,0 +1,6 @@
+if [ -x $1 ]
+then
+	echo Hello, World!
+else
+	echo Hello, $1!
+fi
diff --git a/ex02/ex02.sh b/ex02/ex02.sh
new file mode 100755
index 0000000..03b1ec7
--- /dev/null
+++ b/ex02/ex02.sh
@@ -0,0 +1,7 @@
+for i in $*
+do
+	ls -R | grep -Fi $i || echo 'the searched PATH is unexisting'
+done
+
+
+