# 1
cat 1_playlist_all_video_ids_1.txt | xargs -d "\n" sh -c 'for args do echo -- $args; find . | grep -- $args | head -n1 | sed "s/.*/have/g"; done' _

/z7/youtube/Mlp_Brightness_UCo1oHP-lesaQsKr1vDPJvsg
A6k9tXn5W14 HXXn_j17xwc

/z7/youtube/CwintoraChronicles_UCTQ8Qeq5j2j3OK5Hl5TPCSg
5BjARE2Sr1I c8a5oW11KQg