Add configuration for bash

- Add ~/.bashrc
  + Configure on how the `history` works
  + Enable nicer `cd` and globbing behavior
  + Enable tab completion, even for aliases
  + Add some more stuff from Debian's ~/.bashrc
- Add ~/.bash_logout clearing the screen
- Add stubs for ~/.bash_login and ~/.bash_profile
  that redirect to ~/.profile
- Ensure ~/.local/state/bash/ exists

.config/shell/aliases

@@ -7,4 +7,14 @@
 alias dotfiles='git --git-dir=$DOTFILES_DIR --work-tree=$HOME'
 
 
+
+forget() {  # the current history and restore $HISTFILE from disk
+    if [ -n "$BASH_VERSION" ]; then
+        history -c
+        history -r
+    fi
+}
+
+
+
 alias grep='grep --exclude-dir=.git'

.config/shell/logout

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+# When logging out of a machine, clear the screen to increase privacy
+
+
+if [ "$SHLVL" = 1 ]; then  # ~ if on the outermost shell instance
+
+    # Clear screen and scrollback without a `terminfo` lookup
+    # because `clear` fails on hosts that do not know `$TERM`
+    printf '\033[H\033[2J\033[3J'
+
+    # On a real Linux `tty`, run `clear_console` for a full reset also
+    if [ -t 0 ]; then
+        case "$(tty)" in
+            /dev/tty[0-9]*)
+                if _command_exists clear_console; then
+                    clear_console -q
+                fi
+                ;;
+        esac
+    fi
+
+fi