--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/link-icon	Fri Feb 23 21:21:25 2018 +0000
@@ -0,0 +1,37 @@
+#! /bin/bash
+
+if [[ $# -ne 4 ]]; then
+	echo "Usage: ${0##*/} source-SOURCE theme old-path new-path" >&2
+	echo "  e.g. ${0##*/} /usr/share/icons/Tango mimetypes/gnome-mime-text-css mimetypes/text-css" >&2
+	exit 1
+elif [[ ! -d "$1" ]]; then
+	echo "Source SOURCE did not exist" >&2
+	exit 1
+elif [[ "${1:0:1}" != "/" ]]; then
+	echo "Source must be absolute. For relative paths use link-icon-relative"
+	exit 1
+elif [[ ! -d ~/.icons/"$2" ]]; then
+	echo "Destination theme does not exist"
+	exit 1
+fi
+
+SOURCE=$1
+THEME=$2
+ICON_OLD=$3
+ICON_NEW=$4
+for dir in 16 22 24 32 48 64 128 256 512; do
+	NEW_PREFIX=~/.icons/"$THEME"/${dir}x${dir}
+	OLD_PREFIX="$SOURCE"/${dir}x${dir}
+	if [[ -d "${NEW_PREFIX}"/"${ICON_NEW%/*}" ]] && [[ -f "${OLD_PREFIX}"/"${ICON_OLD}".png ]]; then
+		ln -s "${OLD_PREFIX}"/"${ICON_OLD}".png  "${NEW_PREFIX}"/"${ICON_NEW}".png
+	fi
+done
+
+NEW_PREFIX=~/.icons/"$THEME"/scalable
+OLD_PREFIX="$SOURCE"/scalable
+if [[ -d "${NEW_PREFIX}"/"${ICON_NEW%/*}" ]] && [[ -f "${OLD_PREFIX}"/"${ICON_OLD}".svg ]]; then
+	ln -s "${OLD_PREFIX}"/"${ICON_OLD}".svg "${NEW_PREFIX}"/"${ICON_NEW}".svg
+fi
+
+gtk-update-icon-cache-2.0 ~/.icons/"$THEME"
+gtk-update-icon-cache-3.0 ~/.icons/"$THEME"