Quit quietly when no program specified

README.md

@@ -28,7 +28,7 @@ read the proxy actually to be used. Otherwise `/etc/proxyenv.conf` will be used.
 The configuration file (default `/etc/proxyenv.conf`) will be sourced when proxyenv run,
 so take care no let this file's permission to open, 755 is suggested.
 
-For entry detail of configuration file, see [proxyenv.conf](/proxyenv.conf) in this repository.
+For entry detail of configuration file, see `proxyenv.conf` in this repository.
 
 ## Misc
 

proxyenv

@@ -1,5 +1,10 @@
 #!/usr/bin/env bash
 
+# Just quit queitly when no program specfied
+if (( "$#" -le 0 )) ; then
+    exit 0
+fi
+
 if [[ -z "$PROXYENV_CONFPATH" ]] ; then
     if [[ -e "/etc/proxyenv.conf" ]] ; then
         source "/etc/proxyenv.conf"