added user-agent in scripts

nsfw

@@ -3,7 +3,7 @@
 [ -z "$*" ] && printf "enter(paste) number or link:" && read -r num || num=$*
 num=$(printf "$num" | cut -d\/ -f5)
 dir="$HOME/.cache/$num"
-mkdir -pv $dir
+mkdir -p $dir
 trap "rm -rf $dir;exit 0" INT HUP
 pg=$(curl -s "https://nhentai.net/g/$num/1/" | sed -nE 's/.*pages">(.*)<\/span><.*/\1/p')
 echo "pages : $pg"
@@ -19,4 +19,4 @@ echo "waiting 5 sec for pages to download completely"
 sleep 5
 echo "concatenating pages to pdf"
 convert "$dir/*" "$num.pdf" && printf "saved pdf as $num.pdf\nopening pdf...enjoy 😏😏" && setsid -f xdg-open "$num.pdf"
-rm -rvf $dir
+rm -rf $dir