pborenstein · August 10, 2014 03:49 · Aug 10, 2014
diff --git a/colorsxterm.sh b/colorsxterm.sh
@@ -0,0 +1,40 @@
+#! /usr/bin/env bash
+
+# print all the xterm colors
+# see http://serverfault.com/a/91873 about caculating the rgb values
+
+
+for c in {0..15}
+do
+  printf "\033[38;5;%dm %2d" $c $c
+  if (( (c+1) % 8 == 0 )) ; then
+    echo
+  fi
+done
+
+for r in {0..5}
+do
+  for g in {0..5}
+  do
+    for b in {0..5}
+    do
+      (( rgb = (36 * $r) + (6 * $g) + $b + 16))
+      (( nrgb = rgb - 16 ))
+      printf "\033[38;5;%dm (%3d) %d %d %d" $rgb $rgb $r $g $b
+      if (( (nrgb+1) % 6 == 0 )) ; then
+        echo
+      fi
+      if (( g == 5 &&  b == 5 )) ; then
+        echo
+      fi
+    done
+  done
+done
+
+for c in {232..255}
+do
+  printf "\033[38;5;%dm %2d" $c $c
+  if (( (c+1) % 8 == 0 )) ; then
+    echo
+  fi
+done