reorganise more old stuff

Signed-off-by: Nico Schottelius <nico@ikn.schottelius.org>

old/teecho

@@ -0,0 +1,20 @@
+#!/bin/sh
+  exec 3>/dev/tty
+  echo2()
+  {
+     echo "$@" 1>&2
+  }
+  echo3()
+  {
+     echo "$@" 1>&3
+  }
+  echo1()
+  {
+     echo "$@" 1>&1
+  }
+  echo2 a b c 2>&1 >/dev/null
+  echo2 d e f >/dev/null 2>&1
+  echo2 g h i  | tr '[a-z]' '[A-Z]'
+  ( echo2 j k l; echo x y z ) | tr '[a-z]' '[A-Z]'
+  ( echo1 a1 ;echo2 b2; echo3 c3 ) >/dev/null
+  ( echo1 d1 ;echo2 e2; echo3 f3 ) | tr '[a-z]' '[A-Z]'