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: #archipelago
@amazingeo · Post #693 · 17.04.2026 г., 20:31
🌍 Indonesia is the world’s largest archipelago, made up of over 17,000 islands. Some, like Java, are densely populated, while others remain so remote they still hold undiscovered plant species. ✨ #archipelago⚡#islands⚡#biodiversity⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels
@amazingeo · Post #609 · 02.02.2026 г., 20:31
🌍 Norway’s Lofoten Islands lie above the Arctic Circle but have surprisingly mild winters thanks to warm ocean currents, supporting thriving fishing villages on steep, rocky shores. ✨ #islands⚡#archipelago⚡#climate⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels
@amazingeo · Post #349 · 08.10.2025 г., 20:31
🌍 The Philippines is the world’s second-largest archipelago, with over 7,600 islands. Many of its islands have never been officially named or mapped due to their remote locations. ✨ #islands⚡#archipelago⚡#mapping⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels
@amazingeo · Post #119 · 26.08.2025 г., 09:12
🌍 The Svalbard Archipelago, north of mainland Norway, is the northernmost year-round inhabited place on Earth. It’s so remote that polar bears outnumber people here during much of the year. ✨ #archipelago⚡#islands⚡#Arctic⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography🌍
@amazingeo · Post #156 · 01.09.2025 г., 13:12
🌍 Canada has more lakes than any other country, and many are so large they contain whole islands with their own lakes—making some islands-in-a-lake-on-an-island truly unique on Earth. ✨ #islands⚡#archipelago⚡#lakes⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography🌍
@amazingeo · Post #269 · 20.09.2025 г., 03:12
🌍 The Maldives is the world’s lowest country, with an average elevation of just 1.5 meters above sea level. Its coral islands are so flat that even small sea level rises can threaten their land. ✨ #islands⚡#archipelago⚡#sea⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography🌍
@amazingeo · Post #571 · 12.01.2026 г., 12:31
🌍 The remote Tristan da Cunha archipelago in the South Atlantic is the world’s most isolated inhabited island group—over 2,400 kilometers from the nearest mainland or neighboring islands. ✨ #islands⚡#archipelago⚡#remoteness⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels
@amazingeo · Post #498 · 06.12.2025 г., 20:31
🌍 The Aegean Archipelago in the Mediterranean holds over 1,400 islands, yet only about 200 are inhabited. Many tiny isles remain wild, protecting rare plants and seabirds. ✨ #islands⚡#archipelago⚡#Mediterranean⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels
@amazingeo · Post #531 · 23.12.2025 г., 12:31
🌍 The Faroe Islands in the North Atlantic have more sheep than people. This remote archipelago’s grassy cliffs and rugged fjords create perfect grazing land for thousands of hardy sheep. ✨ #islands⚡#archipelago⚡#northatlantic⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels