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ffmpeg -i "$i.mkv" -map 0:m:language:kor "$i.kor.srt"

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 for i in ./**/*flac;do ffmpeg -i "${i}" -vn -c:a alac "${i}.m4a";done

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git submodule update --remote --merge

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git remote add upstream https://.../ORIGINAL_OWNER/ORIGINAL_REPOSITORY.git
git fetch upstream
git merge upstream/master

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import datetime 

#Sat, 18 Jul 2020 16:05:42 GMT
#fmt = '%a, %d %b %Y %H:%M:%S GMT'
fmt = '%d %b %Y %H:%M:%S'

dump_ts_str = datetime.datetime.strptime(server_time, fmt)
#dump_ts_str = time.strptime(server_time, fmt)

KST = datetime.timezone(datetime.timedelta(hours=9))

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disk usage :      df -h (-hs)
directory usage : du -h  
                  du -h * ( 1 subdirectories )

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for i in **/*flac;do ffmpeg -i "${i}" -c:a alac -vn "${i}";done

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add any necessary path (e.g., /app/pyenv/shims) to secure_path, and it will be passed to sudo commands.
Defaults secure_path = /app/pyenv/libexec:/app/pyenv/shims:/sbin:/bin:/usr/sbin:/usr/bin
more: define-path-environment-variable-sudo-commands

from: https://github.com/pyenv/pyenv/issues/79

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docker run -p 5432:5432 --name postgres -e POSTGRES_PASSWORD=sksmsqnwk11 -d -v ~/temp/docker_data/pgdata:/var/lib/postgresql/data -v ~/temp/docker_data/backup:/home/postgres -d postgres:14.7
docker update e5xxx --restart unless-stopped