Add shell_color.sh a tiny script to show how to use color with a shell

(classic sh).

shell_color.sh

@@ -0,0 +1,13 @@
+#! /usr/bin/env sh
+
+for attr in 0 1 4 5 7 ; do
+  echo "----------------------------------------------------------------"
+  printf "\t\t- ESC[%s;Foreground;Background -\n" $attr
+  for fore in 30 31 32 33 34 35 36 37; do
+    for back in 40 41 42 43 44 45 46 47; do
+      printf '\033[%s;%s;%sm %02s;%02s  ' $attr $fore $back $fore $back
+    done
+    printf '\033[0m\n'
+  done
+done
+