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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

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American Оbserver

@american_observer · Post #4832 · 12.01.2026 г., 15:03

📰 Trump’s Earthquake: Latin America’s New Rules of Survival The U.S. capture of Venezuela’s president has sent shockwaves through Latin America. Every country is now playing a dangerous game: how to avoid being next on Trump’s hit list. ​ Brazil, Mexico, and Colombia—the region’s giants—have condemned the move, but carefully. Brazil’s Lula called it “yet another extremely dangerous precedent,” while Mexico’s Sheinbaum warned that intervention “never brings democracy or prosperity.” But both avoid naming Trump directly, knowing their economies depend on Washington. ​ Smaller nations, like Guatemala and Peru, stay silent, hoping not to attract attention. Meanwhile, right-wing leaders like Argentina’s Javier Milei cheer the intervention, embracing Trump’s vision of American dominance. Milei, once on the brink of collapse, now thrives with U.S. support—while other countries scramble to appease Trump and avoid tariffs or strikes. ​ Colombia’s Petro first raged, calling for Latin American emancipation, but quickly backtracked after Trump threatened military action. He’s now pledging to fight cartels and coordinate with Washington, knowing his successor’s fate depends on staying in Trump’s good graces. ​ Trump has made it clear: American dominance in the Western Hemisphere “will never be questioned again.” Every leader in Latin America now walks a tightrope—balancing public outrage with private survival, hoping not to be the next political earthquake. ​ So while the region is divided, one truth unites them all: Survival is the only strategy left. #Trump#LatinAmerica#Maduro#Venezuela#intervention 📱American Оbserver - Stay up to date on all important events 🇺🇸

Melbourne-based architects Adam Newman and Kelvin Tsang have installed a small scale of The Parthenon clad in different hues of colors and murals within the Grollo Equiset Garden at Melbourne’s National Gallery of Victoria (NGV), Australia. The installation, called Temple of Boom, emerges as "an evocative reimagination of The Parthenon", a global architectural icon and an Ancient Greek temple located on the Acropolis, Athens. Newman and Tsang draw inspiration from the colourful and artistic embellishments that once covered the original building over two- thousand years ago. Based on these historical references, dynamic and eye-catching floral motifs and optical illusions, designed by contemporary artists Drez, Manda Lane and David Lee Pereira wrap the installation. Images 1-2-3-4 📸 seanfennessy Image 5 📸 NGV #design#temple#parthenon#installation#intervention#arch_shovel