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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: #diphtheria
@ncdcgov · Post #4380 · 16.09.2024 г., 08:18
What is #diphtheria❓ Who is most at risk of getting infected❓ What are the signs and symptoms of #diphtheria infection❓ Watch & share 👇🏼 🔗https://youtu.be/6ZAgfCBDh0c?feature=shared
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@ncdcgov · Post #4260 · 19.04.2024 г., 09:23
Share Facts NOT Fear❗ 🔗Visit our website for accurate information on #diphtheria and to stay informed! ➡️Factsheet: https://ncdc.gov.ng/diseases/info/D ➡️Public health advisory: https://ncdc.gov.ng/news/435/diphtheria-public-health-advisory-amidst-outbreak-in-nigeria ➡️Healthcare workers advisory: https://ncdc.gov.ng/news/436/diphtheria-health-advisory-for-health-care-workers-amidst-outbreak-in-nigeria ➡️Situation reports: https://ncdc.gov.ng/diseases/sitreps/?cat=18&name=An%20Update%20of%20Diphtheria%20Outbreak%20in%20Nigeria
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@ncdcgov · Post #4258 · 17.04.2024 г., 14:10
Q: How does #diphtheria spread? A: #Diphtheria spreads easily through: ➡️Direct contact with infected people ➡️Droplets from an infected person while coughing or sneezing ➡️Contact with contaminated objects/clothing For more FAQs, watch 👇🏼 & share: 🔗 https://youtu.be/6ZAgfCBDh0c
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@ncdcgov · Post #4253 · 15.04.2024 г., 07:59
Individuals with symptoms suggestive of #diphtheria should report to a healthcare facility immediately for diagnosis and proper treatment. Ensure you take extra precautionary measures while visiting to prevent the risk of spread. Watch & share 👇🏼 🔗https://youtu.be/6ZAgfCBDh0c?feature=shared
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@ncdcgov · Post #4237 · 30.03.2024 г., 09:26
Individuals with symptoms suggestive of #diphtheria should report to a healthcare facility immediately for diagnosis and proper treatment. Ensure you take extra precautionary measures while visiting to prevent the risk of spread. Watch & share 👇🏼 🔗https://youtu.be/6ZAgfCBDh0c?feature=shared
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@ncdcgov · Post #4236 · 29.03.2024 г., 09:03
Q: How does #diphtheria spread? A: #Diphtheria spreads easily through: ➡️Direct contact with infected people ➡️Droplets from an infected person while coughing or sneezing ➡️Contact with contaminated objects/clothing For more FAQs, watch 👇🏼 & share: 🔗 https://youtu.be/6ZAgfCBDh0c
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@ncdcgov · Post #4233 · 27.03.2024 г., 09:14
Q: Who is at risk of #diphtheria infection? A: ➡️Children & adults who are unvaccinated or partially vaccinated with the anti-diphtheria vaccine ➡️Individuals who live in crowded or dirty environments ➡️Healthcare workers For more FAQs, watch & share👇🏼 https://youtu.be/6ZAgfCBDh0c
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@ncdcgov · Post #4230 · 23.03.2024 г., 08:51
What is #diphtheria❓ Who is most at risk of getting infected❓ What are the signs and symptoms of #diphtheria infection❓ Watch & share 👇🏼 🔗https://youtu.be/6ZAgfCBDh0c?feature=shared
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@ncdcgov · Post #4137 · 22.12.2023 г., 08:13
Individuals with symptoms suggestive of #diphtheria should report to a healthcare facility immediately for diagnosis and proper treatment. Ensure you take extra precautionary measures while visiting to prevent the risk of spread. Watch & share 👇🏼 🔗https://youtu.be/6ZAgfCBDh0c?feature=shared
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@ncdcgov · Post #4136 · 21.12.2023 г., 08:43
What is #diphtheria? Who is most at risk of getting infected? What are the signs and symptoms of #diphtheria infection? Watch & share 👇🏼 🔗https://youtu.be/6ZAgfCBDh0c?feature=shared
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@ncdcgov · Post #4134 · 18.12.2023 г., 15:52
Q: How does #diphtheria spread? A: #Diphtheria spreads easily through: ➡️Direct contact with infected people ➡️Droplets from an infected person while coughing or sneezing ➡️Contact with contaminated objects/clothing For more FAQs, watch 👇🏼 & share: 🔗 https://youtu.be/6ZAgfCBDh0c
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@ncdcgov · Post #4131 · 15.12.2023 г., 08:28
Q: Who is at risk of #diphtheria infection? A: ➡️Children & adults who are unvaccinated or partially vaccinated with the anti-diphtheria vaccine ➡️Individuals who live in crowded or dirty environments ➡️Healthcare workers For more FAQs, watch & share👇🏼 https://youtu.be/6ZAgfCBDh0c
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