diff --git a/sample/components/independent_test_1.bash b/sample/components/independent_test_1.bash
index 32dd3e9..e98115f 100755
--- a/sample/components/independent_test_1.bash
+++ b/sample/components/independent_test_1.bash
@@ -1,7 +1,7 @@
 #!/usr/bin/bash
 #
 echo test from script
-/usr/bin/dialog --title "This should be one argument" --inputbox "Enter your name:" 0 0
+#/usr/bin/dialog --title "This should be one argument" --inputbox "Enter your name:" 0 0
 
 
 
diff --git a/sample/environments/rex.variables b/sample/environments/rex.variables
index 235542f..4008dd8 100755
--- a/sample/environments/rex.variables
+++ b/sample/environments/rex.variables
@@ -1,9 +1,5 @@
 #!/usr/bin/bash
 
-
-
-
-
 set -a
 
 echo "variables file says hello and set a variable named TEST_VAR"
diff --git a/sample/plans/test.plan b/sample/plans/test.plan
index 951198e..0523995 100755
--- a/sample/plans/test.plan
+++ b/sample/plans/test.plan
@@ -1,5 +1,6 @@
 {
   "plan": [
-    { "name": "independent test 1", "dependencies":  [ null ] }
+    { "name": "independent test 1", "dependencies":  [ null ] },
+    { "name": "independent test 2", "dependencies":  [ null ] }
   ]
 }
diff --git a/sample/units/new.units b/sample/units/new.units
index 20df49b..cfcdb0f 100755
--- a/sample/units/new.units
+++ b/sample/units/new.units
@@ -17,6 +17,24 @@
         "group":        		"$USER",
 	"supply_environment":		true,
         "environment":  		"environments/rex.variables"
+    },
+    {
+        "name":         		"independent test 2",
+        "target":       		"components/independent_test_1.bash --ls -s --arg",
+	"is_shell_command":		true,
+	"shell_definition":		"bash",
+	"force_pty":			true,
+	"set_working_directory":	false,
+	"working_directory":		"",
+        "rectify":      		false,
+        "rectifier":    		"echo rectifier executed",
+        "active":       		true,
+        "required":     		true,
+	"set_user_context": 		true,
+        "user":         		"$USER",
+        "group":        		"$USER",
+	"supply_environment":		true,
+        "environment":  		"environments/rex.variables"
     }
  ]
 }
diff --git a/src/lcpex/liblcpex.cpp b/src/lcpex/liblcpex.cpp
index f494a6f..b0e033e 100644
--- a/src/lcpex/liblcpex.cpp
+++ b/src/lcpex/liblcpex.cpp
@@ -321,11 +321,6 @@ int execute(
                         close(watched_fds[this_fd].fd);
                         break_out = true;
                     }
-//                    if (watched_fds[this_fd].revents & POLLHUP) {
-//                        // this pipe has hung up
-//                        close(watched_fds[this_fd].fd);
-//                        break_out = true;
-//                    }
                     if (watched_fds[this_fd].revents & POLLHUP) {
                         // this pipe has hung up
                         // don't close the file descriptor yet, there might still be data to read
diff --git a/src/lcpex/vpty/libclpex_tty.cpp b/src/lcpex/vpty/libclpex_tty.cpp
index f2502c1..a423535 100644
--- a/src/lcpex/vpty/libclpex_tty.cpp
+++ b/src/lcpex/vpty/libclpex_tty.cpp
@@ -108,7 +108,7 @@ int exec_pty(
     // before we fork the process, so that the child process will inherit the environment
     // from the parent process
     if ( environment_supplied ) {
-        clearenv();
+        //clearenv();
     }
 
     // turn our command string into something execvp can consume
diff --git a/src/misc/helpers.cpp b/src/misc/helpers.cpp
index e25ff82..5f36e59 100644
--- a/src/misc/helpers.cpp
+++ b/src/misc/helpers.cpp
@@ -101,10 +101,22 @@ std::string get_8601()
  *
  * @param text The input text to be processed
  */
+//void interpolate( std::string & text )
+//{
+//    static std::regex env1( "\\$\\{([^}]+)\\}" );
+//    static std::regex env2( "\\$([^/]+)" ); // matches $VAR_NAME until a / is found
+//    std::smatch match;
+//    while ( std::regex_search( text, match, env1 ) || std::regex_search( text, match, env2 ) )
+//    {
+//        const char * s = getenv( match[1].str().c_str() );
+//        const std::string var( s == NULL ? "" : s );
+//        text.replace( match[0].first, match[0].second, var );
+//    }
+//}
 void interpolate( std::string & text )
 {
-    static std::regex env1( "\\$\\{([^}]+)\\}" );
-    static std::regex env2( "\\$([^/]+)" ); // matches $VAR_NAME until a / is found
+    std::regex env1( "\\$\\{([^}]+)\\}" );
+    std::regex env2( "\\$([^/]+)" ); // matches $VAR_NAME until a / is found
     std::smatch match;
     while ( std::regex_search( text, match, env1 ) || std::regex_search( text, match, env2 ) )
     {