diff --git a/bash/bash-open-startfiles.sh b/bash/bash-open-startfiles.sh
new file mode 100755
index 0000000..609f436
--- /dev/null
+++ b/bash/bash-open-startfiles.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+# lists all files, an interactive login-shell with bash would try to open. Useful to find the correct order of .bashrc .profile and such.
+
+echo exit | strace bash -li |& grep '^open'
diff --git a/bash/friendly_path-export.sh b/bash/friendly_path-export.sh
new file mode 100755
index 0000000..5fcd524
--- /dev/null
+++ b/bash/friendly_path-export.sh
@@ -0,0 +1,6 @@
+#/!bin/bash
+
+# exports a path only, if $PATH does not already contains the path.
+
+NEWPATH="$1"
+echo ":$PATH:" | grep -q ":$NEWPATH:" || export PATH="$PATH:$NEWPATH"