diff --git a/.config/shell/profile b/.config/shell/profile
index 5508943..872e312 100644
--- a/.config/shell/profile
+++ b/.config/shell/profile
@@ -1,14 +1,12 @@
-#!/bin/zsh
+#!/bin/sh
+# shellcheck disable=SC2155
 
-# profile file. Runs on login. Environmental variables are set here.
+# Profile file, runs on login. Environmental variables are set here.
 
-# If you don't plan on reverting to bash, you can remove the link in ~/.profile
-# to clean up.
+# Add all directories in `~/.local/bin` to $PATH
+export PATH="$PATH:$(find ~/.local/bin -type d | paste -sd ':' -)"
 
-# Adds `~/.local/bin` to $PATH
-export PATH="$PATH:${$(find ~/.local/bin -type d -printf %p:)%%:}"
-
-unsetopt PROMPT_SP
+unsetopt PROMPT_SP 2>/dev/null
 
 # Default programs:
 export EDITOR="nvim"
@@ -52,7 +50,7 @@ export SQLITE_HISTORY="$XDG_DATA_HOME/sqlite_history"
 export DICS="/usr/share/stardict/dic/"
 export SUDO_ASKPASS="$HOME/.local/bin/dmenupass"
 export FZF_DEFAULT_OPTS="--layout=reverse --height 40%"
-export LESS=-R
+export LESS="R"
 export LESS_TERMCAP_mb="$(printf '%b' '')"
 export LESS_TERMCAP_md="$(printf '%b' '')"
 export LESS_TERMCAP_me="$(printf '%b' '')"
@@ -61,15 +59,15 @@ export LESS_TERMCAP_se="$(printf '%b' '')"
 export LESS_TERMCAP_us="$(printf '%b' '')"
 export LESS_TERMCAP_ue="$(printf '%b' '')"
 export LESSOPEN="| /usr/bin/highlight -O ansi %s 2>/dev/null"
-export QT_QPA_PLATFORMTHEME="gtk2" # Have QT use gtk2 theme.
-export MOZ_USE_XINPUT2="1" # Mozilla smooth scrolling/touchpads.
+export QT_QPA_PLATFORMTHEME="gtk2"        # Have QT use gtk2 theme.
+export MOZ_USE_XINPUT2=1                  # Mozilla smooth scrolling/touchpads.
 export AWT_TOOLKIT="MToolkit wmname LG3D" # May have to install wmname
-export _JAVA_AWT_WM_NONREPARENTING=1 # Fix for Java applications in dwm
+export _JAVA_AWT_WM_NONREPARENTING=1      # Fix for Java applications in dwm
 
-[ ! -f ${XDG_CONFIG_HOME:-$HOME/.config}/shell/shortcutrc ] && setsid shortcuts >/dev/null 2>&1
+[ ! -f "$XDG_CONFIG_HOME/shell/shortcutrc" ] && setsid -f shortcuts >/dev/null 2>&1
 
 # Start graphical server on user's current tty if not already running.
 [ "$(tty)" = "/dev/tty1" ] && ! pidof -s Xorg >/dev/null 2>&1 && exec startx "$XINITRC"
 
 # Switch escape and caps if tty and no passwd required:
-sudo -n loadkeys ${XDG_DATA_HOME:-$HOME/.local/share}/larbs/ttymaps.kmap 2>/dev/null
+sudo -n loadkeys "$XDG_DATA_HOME/larbs/ttymaps.kmap" 2>/dev/null