TGINSIGHT SIMILAR POSTS
Изворен канал @pythonotes · Post #411 · 9 фев.
reload_flag="" if [[ -n "${DEBUG}" ]]; then reload_flag="--reload" fi if [[ -n "${WORKER_COUNT}" ]]; then workers=${WORKER_COUNT} else workers=2 fi gunicorn --workers ${workers} \ --bind 0.0.0.0:8000 \ ${reload_flag} main.wsgi Писали такие конструкции чтобы проверить наличие флага и сформировать команду правильно? На самом деле можно сделать тоже самое проще. Для этого используются операторы условной подстановки, доступные в оболочках семейства POSIX. :- для установки значений по умолчанию ${WORKER_COUNT:-2} Если переменная не объявлена, то будет дефолтное значение 2. :+ подставляет указанный текст, если переменная не пуста ${DEBUG:+--reload} Если что-то есть в переменной то распечатается текст после символа +, в противном случае - ничего. Удобно для опциональных флагов, как в нашем примере. Итого наш скрипт может выглядеть так: gunicorn --workers ${WORKER_COUNT:-2} \ --bind 0.0.0.0:8000 \ ${DEBUG:+--reload} main.wsgi Есть еще два оператора. := не только подставить дефолтное значение, но и присвоить его переменной, если она пуста # никаких переменных еще нет VAL1=${VAL2:=hello} # теперь доступны обе echo $VAL1 $VAL2 # hello hello :? остановить выполнение с ошибкой, если переменной нет. echo ${MISS:?is required} bash: MISS: is required Код выхода будет 1. #tricks#linux
Пребарај: #mygov
@MyGovCoronaNewsdesk · Post #13060 · 19.01.2024 г., 06:26
Your voice matters in shaping Viksit Bharat @ 2047. Share your dreams for a thriving India on #MyGov. Join the journey at: https://innovateindia.mygov.in/viksitbharat2047/
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@MyGovCoronaNewsdesk · Post #12981 · 22.12.2023 г., 13:43
👆Just 10 days until we step into 2024! Join #MyGov on an exclusive journey presenting '10 Infra Magic of New India' in the final countdown of 2023. Don't miss out!
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@MyGovCoronaNewsdesk · Post #12690 · 10.05.2023 г., 07:41
Test your knowledge on India's journey towards Swaraj with the Swaraj Quiz Episode 39 on #MyGov. Visit https://quiz.mygov.in/quiz/swaraj-quiz-episode-39/ to learn about the inspiring leaders and events that shaped our nation's history.
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@MyGovCoronaNewsdesk · Post #12657 · 02.05.2023 г., 06:33
Calling all aspiring tech entrepreneurs🧑💻🧑💻 Join the Chunauti 5.0 program by #MyGov and take a step towards a stronger and self-reliant India. Apply NOW and be a part of the innovative startup ecosystem. Visit: https://www.mygov.in/task/chunauti-50-%E2%80%93-call-application/
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@MyGovCoronaNewsdesk · Post #12609 · 25.04.2023 г., 08:38
Oral health is crucial for overall well-being! Join the Oral Health campaign by #MyGov to spread awareness and promote healthy dental practices. Visit: https://mygov.in/campaigns/oral-health/?utm_source=mygov_campaign
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@MyGovCoronaNewsdesk · Post #12562 · 18.04.2023 г., 10:40
Spread positivity and laughter with your creativity! Participate in the खुलकर जियो Khul Kar Muskurao meme contest on #MyGov and win exciting prizes. Visit: https://www.mygov.in/task/khulkar-jieo-khulkar-muskurao-meme-contest/
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@MyGovCoronaNewsdesk · Post #12560 · 18.04.2023 г., 05:04
Congratulations to the winners of #MyGov's New India Quiz for March 🏆🏆 Your knowledge of India is impressive! Keep learning and exploring the diverse cultures and traditions of our incredible nation. Visit: https://blog.mygov.in/winner-announcement-blog-for-mygovs-new-india-quiz-march-month-mann-ki-baat/
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@MyGovCoronaNewsdesk · Post #12557 · 17.04.2023 г., 08:35
Show your creativity and spread awareness about oral health through your writing skills! Participate in the Poem Writing Competition on #MyGov. Visit: https://www.mygov.in/task/poem-writing-competition-oral-health/
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@MyGovCoronaNewsdesk · Post #12555 · 16.04.2023 г., 10:31
Lights, Camera, Smile! Showcase your filmmaking skills and spread positivity with 'खुलकर जियो Khul Kar Muskurao short film contest' on #MyGov. Visit https://www.mygov.in/task/khulkar-jieo-khulkar-muskurao-short-film-contest/ for more details
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@mygovcoronanewsdesk · Post #12354 · 19.03.2023 г., 08:02
Capture the Beauty of Ladakh with your lens. Participate in Photography Contest on #MyGov Visit: https://ladakh.mygov.in/task/capture-beauty-ladakh-photography-contest
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@mygovcoronanewsdesk · Post #12338 · 16.03.2023 г., 15:22
Capture the Beauty of Ladakh with your lens. Participate in Photography Contest on #MyGov Visit: https://ladakh.mygov.in/task/capture-beauty-ladakh-photography-contest
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@mygovcoronanewsdesk · Post #12336 · 16.03.2023 г., 09:56
#MyGov now reaches the breathtaking landscapes of Ladakh to foster greater citizen engagement & empowerment Visit: ladakh.mygov.in
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