Just another update

Task/Environment-variables/00DESCRIPTION

@@ -1 +1,6 @@
-Show how to get one of your process's [[wp:Environment variable|environment variables]]. The available variables vary by system; some of the common ones available on Unix include PATH, HOME, USER.
+{{omit from|TI-83 BASIC}} {{omit from|TI-89 BASIC}} <!-- Does not have an environment other than regular global variables. -->
+{{omit from|M4}}
+{{omit from|Unlambda|Does not provide access to environment variables.}}
+{{task|Programming environment operations}}
+Show how to get one of your process's [[wp:Environment variable|environment variables]].
+The available variables vary by system; some of the common ones available on Unix include PATH, HOME, USER.

Task/Environment-variables/00META.yaml

@@ -2,4 +2,4 @@
 category:
 - Environment variables
 - Initialization
-note: Programming environment operations
+note: Environment variables

Task/Environment-variables/Make/environment-variables-1.make

@@ -0,0 +1,3 @@
+TARGET = $(HOME)/some/thing.txt
+foo:
+	echo $(TARGET)

Task/Environment-variables/Make/environment-variables-2.make

@@ -0,0 +1,2 @@
+bar:
+        echo "$$HOME"

Task/Environment-variables/Make/environment-variables-3.make

@@ -0,0 +1,5 @@
+H = oops ...
+bar:
+	echo $HOME
+
+# prints oops ... OME

Task/Environment-variables/Perl/environment-variables-2.pl

@@ -0,0 +1,2 @@
+use POSIX 'getenv';
+print getenv("HOME"),"\n";

Task/Environment-variables/Scala/environment-variables.scala

@@ -1,9 +1,8 @@
 object Environment_variables extends App {
 
-  val variablesToUse = List("PATH", "HOME", "HOMEPATH", "USERNAME")
-  println((for {
-    y <- sys.env
-    x <- variablesToUse
-    if y._1 == x
-  } yield y).sorted.toMap.mkString("\n"))
+  def variablesToUse = Seq("USERPROFILE", "java.library.path", "PATH", "HOME", "HOMEPATH", "USERNAME")
+  println(sys.env.filter(p => variablesToUse contains p._1).toMap.mkString("\n"))
+  println
+  println (System.getProperty("java.library.path").split(";").mkString("\n"))
+
 }

Task/Environment-variables/Smalltalk/environment-variables.st

@@ -0,0 +1,3 @@
+OSProcess thisOSProcess environment at: #HOME.
+OSProcess thisOSProcess environment at: #PATH.
+OSProcess thisOSProcess environment at: #USER.