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: #indiansubcontinent
@developmentnewsindia · Post #44395 · 04.05.2026 г., 13:03
Impact of BJP Victory in #IndianSubcontinent With a BJP Govt in West Bengal, the Teesta Agreement with Bangladesh could see a new momentum. Mamta Banerjee led Govt had historically opposed the Teesta agreement despite both PM Manmohan Govt, PM Modi Govt supporting it. With both BJP Govt in Delhi, Kolkata - Dhaka will be hopeful.
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@developmentnewsindia · Post #44384 · 04.05.2026 г., 05:57
All major Bangladesh media outlets right now have BJP victory in West Bengal as top headlines. #IndianSubcontinent
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@developmentnewsindia · Post #44373 · 03.05.2026 г., 16:01
Pakistan has only 90 days of water storage, below regional and global standards, prompting the government to form a task force for improved water management. "Not a Single drop of Water Will Reach Pakistan" Source #IndianSubcontinent
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@developmentnewsindia · Post #44372 · 03.05.2026 г., 15:16
🇳🇵⚡🇮🇳🇨🇳 Balen Shah-led Nepal government tells India, China not to conduct Kailash Mansarovar Yatra through Lipulekh, claims route lies in Nepal. कल का आया लौंडा औकात के बाहर कूद रहा है। #IndianSubcontinent
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@developmentnewsindia · Post #44354 · 03.05.2026 г., 07:15
After Muizzu, Nepal PM Balen Shah held no meeting with Sergio Gor, Trump's South & Central Asian envoy. Muizzu didn't meet Gor due to the Maldives and Chagos issue, while Balen Shah has decided he won't be meeting anyone below PM level of another country. #IndianSubcontinent
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@developmentnewsindia · Post #44318 · 02.05.2026 г., 08:01
Now Qatar abandons Pakistan Qatar has suspended gas supply to Pakistan, confirms Pak energy minister Ali Pervaiz Malik #IndianSubcontinent
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@developmentnewsindia · Post #44306 · 02.05.2026 г., 05:36
Dhurandhar Q1 2026 results #IndianSubcontinent
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@developmentnewsindia · Post #44304 · 02.05.2026 г., 05:20
Chinese companies have pulled out of Balochistan and Gwadar. We are truly sorry. We have done everything we could. #IndianSubcontinent
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@developmentnewsindia · Post #44195 · 29.04.2026 г., 15:07
Official account of Nepal Airlines. #IndianSubcontinent Comment section is open for all kinds of comments.
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@developmentnewsindia · Post #44190 · 29.04.2026 г., 10:51
🇵🇰🐖⚰️Maulana Salman Azhar of JeM died, reports say, due to a car accident. His funeral will be held at Jaish HQ Markaz Subhanallah at 4:00 PM in Bahawalpur. #IndianSubcontinent
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@developmentnewsindia · Post #44146 · 28.04.2026 г., 06:39
Pakistan Petroleum Minister reveals they have no petrol left, says "We are not India that can get oil with 1 sign. - Pakistan has absolutely zero strategic oil reserves, relying entirely on commercial reserves. - "We're not like India, which can release 60-70 days of oil reserves with one signature." Modi has the chance to do something really funny 🌚 #IndianSubcontinent
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@developmentnewsindia · Post #44128 · 27.04.2026 г., 14:38
🇵🇰⚔️🇦🇫 Pakistan Army carried out artillery strikes on a hostel in kunar, Afghanistan, killing three students and one professor. 45+ injured #IndianSubcontinent
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