diff --git a/bin/ext-summary b/bin/ext-summary
new file mode 120000
index 0000000..4814186
--- /dev/null
+++ b/bin/ext-summary
@@ -0,0 +1 @@
+../files/ext-summary
\ No newline at end of file
diff --git a/files/ext-summary b/files/ext-summary
new file mode 100755
index 0000000..8830d5a
--- /dev/null
+++ b/files/ext-summary
@@ -0,0 +1,125 @@
+#!/bin/bash
+
+function helpexit() {
+    echo "Display extension sizes and counts"
+    echo "Returns only the size as number"
+    echo "  --help   This help"
+    echo "  -a       Disable animation while counting"
+    exit
+}
+function filesize() {
+# Return a human readable size from integer of bytes
+# Usage:  filesize 10000
+
+    [ "$1"  = "0" ] && {
+        echo "0~B"
+        return 0
+    }
+
+    awk 'BEGIN{ x = '$1'
+        split("B kB MB GB TB PB EB ZB", type)
+        for(i=7;y < 1;i--)
+            y = x / (2^(10*i))
+        if (i==-1) { printf( "%d~B", x) }
+        if (i>-1) { printf( "%0.1f%s", y, type[i+2]) }
+    }' || return $?
+}
+function siprefix() {
+# Return a SI prefixed string from integer
+
+    [ "$1"  = "0" ] && {
+        echo "0~#"
+        return 0
+    }
+
+    awk 'BEGIN{ x = '$1'
+        split("# k# M# G# T# P# E# Z#",type)
+        for(i=7;y < 1;i--)
+            y = x / (10^(3*i))
+        if (i==-1) { printf( "%d~#", x) }
+        if (i>-1) { printf( "%0.1f%s", y, type[i+2]) }
+    }' || return $?
+}
+
+function animate() {
+  CHARS=( \
+    '\_(".)_/' \
+    '\_(.")_/' \
+    '\_(".)_/' \
+    '\_(.")_/' \
+    "\_('')_/" \
+    '\_(..)_/' \
+    "\_('')_/" \
+    "\_('')_/" \
+  )
+  i=0
+  while true; do
+    sleep 1.5
+    printf "\r %s\r" "${CHARS[$i]}" >&2
+    i=$(( (i + 1)%${#CHARS[@]} ))
+  done
+}
+
+function processfolders() {
+
+  printf "%8s %8s %-10s\n" \
+    Size \
+    Count \
+    Name
+
+  find "$@" -type f \
+  -printf "%s|%P\n" 2>/dev/null | awk '
+  BEGIN { FS = "|" }
+  {
+    n = split($2, fname, "/");
+    if (index(fname[n], ".") > 1) {
+      n = split(fname[n], fsplit, ".");
+      ext = "."tolower(fsplit[n])
+    } else {
+      ext = "N/A"
+    }
+    sum[ext] += $1;
+    count[ext] += 1;
+  }
+  END {
+    for (e in sum) {
+      print sum[e]"|"count[e]"|"e
+    }
+  }' | sort -n -k 1 -t\| | while read line; do
+   IFS='|' read -r -a array <<< "$line"
+
+   printf "%8s %8s %-10s\n" \
+    $( filesize "${array[0]}" ) \
+    $( siprefix "${array[1]}" ) \
+    "${array[2]}"
+  done | sed -e 's,~B, B,' -e 's,~#, #,'
+
+}
+
+# Get options
+what=()
+ANIMATE=1
+for (( i=1; i<=$#; i++ )); do
+  [[ "${!i}" = "--help" ]] && helpexit
+  [[ "${!i}" = "-"* ]] && {
+    [[ "${!i}" =~ -.*a ]] && { ANIMATE=0; }
+    [[ "${!i}" =~ -.*h ]] && { helpexit; }
+    continue
+  }
+  what+=( "${!i}" )
+done
+
+[[ -z "${what[@]}" ]] && what="."
+
+if [[ "$ANIMATE" -eq 1 ]]; then
+  trap 'trap - SIGTERM && kill -- -$$' EXIT SIGINT SIGTERM
+  animate &
+fi
+
+processfolders "${what[@]}"
+
+if [[ "$ANIMATE" -eq 1 ]]; then
+  trap - EXIT SIGINT SIGTERM
+  kill %1
+fi
+