.profile: Update variable names in our PS1 command to avoid clobbering

.profile

@@ -331,59 +331,59 @@ _ps1bash() {
 	fg_bold="\[\e[1m\]"
 
 	# Add hostname prefix in SSH sessions
-	unset prefix
+	unset _prefix
 	# Alert if in an SSH session
 	if [ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ]; then
-		prefix="${fg_bold}${fg_red}$(hostname -s)${r}${fg_red}:${r}${prefix}"
+		_prefix="${fg_bold}${fg_red}$(hostname -s)${r}${fg_red}:${r}${_prefix}"
 	elif [ "$USER" != "salt" ]; then
-		prefix="${fg_bold}${fg_yellow}$USER${r}${fg_yellow}:${r}${prefix}"
+		_prefix="${fg_bold}${fg_yellow}$USER${r}${fg_yellow}:${r}${_prefix}"
 	fi
 	# Change PWD color depending on the shell
 	case $0 in
 		*bash)
-			prefix="${prefix}${fg_blue}"
+			_prefix="${_prefix}${fg_blue}"
 			;;
 		*ksh)
-			prefix="${prefix}${fg_green}"
+			_prefix="${_prefix}${fg_green}"
 			;;
 		*)
 			;;
 	esac
 	# Show the tilde instead of $HOME
-	cpwd='\w'
+	_cpwd='\w'
 	# Show read-only status in certain directories
 	if [ "$UID" = 0 ]; then
 		# Root gets the usual "#" prompt
-		prompt="${fg_red}#${r}"
+		_prompt="${fg_red}#${r}"
 	elif ! [ -d "$PWD" ]; then
 		# Something very bad has happened to our PWD, probably got deleted
-		prompt="${bg_red}${fg_black}!${r}"
+		_prompt="${bg_red}${fg_black}!${r}"
 	elif ! [ -r "$PWD" ]; then
 		# Guess we lost privileges
-		prompt="${fg_red}"'$'"${r}"
+		_prompt="${fg_red}"'$'"${r}"
 	elif ! [ -x "$PWD" ]; then
 		# Missing execution perms
 		if [ -w "$PWD" ]; then
 			# Fixable
-			prompt="${bg_blue}${fg_black}"'$'"${r}"
+			_prompt="${bg_blue}${fg_black}"'$'"${r}"
 		else
 			# Unfixable
-			prompt="${bg_yellow}${fg_black}"'$'"${r}"
+			_prompt="${bg_yellow}${fg_black}"'$'"${r}"
 		fi
 	elif ! [ -w "$PWD" ]; then
 		# Can't write is really common but also good to know
-		prompt="${fg_magenta}"'~'"${r}"
+		_prompt="${fg_magenta}"'~'"${r}"
 	else
 		# Otherwise we should be fine
-		prompt="${fg_green}"'$'"${r}"
+		_prompt="${fg_green}"'$'"${r}"
 	fi
 	# Alert us if the last command failed
-	unset fail
+	unset _fail
 	if ! [ "$exitcode" = "0" ]; then
-		fail="${fg_bold}${fg_red}?"
+		_fail="${fg_bold}${fg_red}?"
 	fi
 	# shellcheck disable=2059
-	PS1="[${prefix}${cpwd}${r}]${fail}${r}${prompt}${r} "
+	PS1="[${_prefix}${_cpwd}${r}]${_fail}${r}${_prompt}${r} "
 }
 
 # And export our PS1