use $user instead of $@

postinstall.sh

@@ -28,7 +28,7 @@ dl_wallpapers() {
 
 make_dwl() {
   cd $HOME/.local/src/dwl/
-  sed -i "s|/home/amolinae/|/home/"$@"/|g" config.h
+  sed -i "s|/home/amolinae/|/home/"$user"/|g" config.h
   bwroot make install
 }
 
@@ -49,7 +49,9 @@ make_hellwal() {
   cd; hellwal -i Pictures/Wallpapers/vatihall.jpg
 }
 
-cd "/home/$@/"
+user="$@"
+
+cd "/home/$user/"
 read_software $software
 dl_wallpapers
 make_hellwal