Add some functions to control the finder

* Add column_view function
* Add function to get the path to frontmost Finder window
* Add icon_view function
* Add list_view function
* Update TOC

Unfortunately I didn't note where I got these functions in my zsh
dotfiles so I can't give the original author proper credit. If
anyone does recognize them, please PR to add a credit.

functions.md

@@ -7,11 +7,72 @@
 ## Table of Contents
 
 - [Finder](#finder)
+    - [Get Path of Frontmost Finder Window](#get-path-of-frontmost-finder-window)
+    - [Set Current Directory's Finder View to Column View](#set-current-directorys-finder-view-to-column-view)
+    - [Set Current Directory's Finder View to Icon View](#set-current-directorys-finder-view-to-icon-view)
+    - [Set Current Directory's Finder View to List View](#set-current-directorys-finder-view-to-list-view)
 
 
 ## Finder
 
+### Get Path of Frontmost Finder Window
 
+```bash
+function finder_path {
+    osascript -e 'tell application "Finder"'\
+        -e "if (${1-1} <= (count Finder windows)) then"\
+        -e "get POSIX path of (target of window ${1-1} as alias)"\
+        -e 'else' \
+        -e 'get POSIX path of (desktop as alias)'\
+        -e 'end if' \
+        -e 'end tell';
+}
+```
+
+### Set Current Directory's Finder View to Column View
+
+```bash
+function column_view {
+    osascript -e 'set cwd to do shell script "pwd"'\
+      -e 'tell application "Finder"'\
+      -e "if (${1-1} <= (count Finder windows)) then"\
+      -e "set the target of window ${1-1} to (POSIX file cwd) as string"\
+      -e "set the current view of the front Finder window to column view"\
+      -e 'else' -e "open (POSIX file cwd) as string"\
+      -e "set the current view of the front Finder window to column view"\
+      -e 'end if' -e 'end tell';
+}
+```
+
+### Set Current Directory's Finder View to Icon View
+
+```bash
+function icon_view {
+    osascript -e 'set cwd to do shell script "pwd"'\
+      -e 'tell application "Finder"'\
+      -e "if (${1-1} <= (count Finder windows)) then"\
+      -e "set the target of window ${1-1} to (POSIX file cwd) as string"\
+      -e "set the current view of the front Finder window to icon view"\
+      -e 'else' -e "open (POSIX file cwd) as string"\
+      -e "set the current view of the front Finder window to icon view"\
+      -e 'end if' -e 'end tell';
+};
+```
+
+### Set Current Directory's Finder View to List View
+
+```bash
+function list_view {
+  osascript -e 'set cwd to do shell script "pwd"'\
+    -e 'tell application "Finder"'\
+    -e "if (${1-1} <= (count Finder windows)) then"\
+    -e "set the target of window ${1-1} to (POSIX file cwd) as string"\
+    -e "set the current view of the front Finder window to list view"\
+    -e 'else' -e "open (POSIX file cwd) as string"\
+    -e "set the current view of the front Finder window to list view"\
+    -e 'end if' -e 'end tell';\
+}
+```
 
 ## License