linkhandler default browser with fixes

.profile

@@ -5,20 +5,20 @@
 export PATH="$PATH:$HOME/.scripts"
 export EDITOR="vim"
 export TERMINAL="st"
-export BROWSER="firefox"
+export BROWSER="linkhandler"
+export TRUEBROWSER="firefox"
 export READER="zathura"
 export BIB="$HOME/Documents/LaTeX/uni.bib"
 
-. ~/.scripts/shortcuts.sh 2>/dev/null
+[ -f ~/.scripts/shortcuts.sh ] && ~/.scripts/shortcuts.sh
 
-[[ -f ~/.bashrc ]] && . ~/.bashrc
+[ -f ~/.bashrc ] && source ~/.bashrc
 
 # Start graphical server if i3 not already running.
-if [[ "$(tty)" = "/dev/tty1" ]]; then
+if [ "$(tty)" = "/dev/tty1" ]; then
 	pgrep -x i3 || exec startx
 fi
 
 # Switch escape and caps and use wal colors if tty:
 sudo -n loadkeys ~/.scripts/ttymaps.kmap 2>/dev/null
 wal -Rn
-

.scripts/linkhandler

@@ -20,5 +20,5 @@ case "$1" in
 		setsid tsp wget "$1" >/dev/null 2>&1 & ;;
 	*springer.com*)
 		setsid curl -sO "$(curl -s "$scihub$*" | grep -Po "(?<=location.href=').+.pdf")" >/dev/null 2>&1 & ;;
-	*) setsid "$BROWSER" "$1" >/dev/null 2>&1 & ;;
+	*) setsid "$TRUEBROWSER" "$1" >/dev/null 2>&1 & ;;
 esac