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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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Crypto M - Crypto News

@CryptoM · Post #64464 · 09.04.2026 г., 01:17

🚀 CZ: Crypto vs Traditional Finance Is a False Divide — 'It's Just a New Technology for Finance' Speaking on The Wolf of All Streets Podcast, Binance founder Changpeng Zhao (CZ) revealed that he shared his memoir Freedom of Money with BlackRock CEO Larry Fink and obtained a quote from him, praising Fink as an example of someone who publicly changed his mind on Bitcoin and pushed it hard afterwards. CZ said he views the framing of crypto versus traditional finance as a false dichotomy — crypto is simply a new technology for finance, and convergence between the two is inevitable, with tokenization of real-world assets as a key driver. On access, CZ argued that any person anywhere in the world should be able to buy any listed stock, calling current restrictions an anomaly that blockchain can help resolve. CZ said the "72 principles" attributed to him online were counted by a Chinese KOL on X, not by him; he removed numbered headings intentionally. He said the principles blog began after a meeting with Ray Dalio in 2021 or 2022, during which Dalio encouraged him to write down his decision-making principles, and it is included as an appendix in Freedom of Money. #Crypto#TraditionalFinance#Blockchain#Tokenization#FinanceTechnology#GlobalFinance#Binance#CZ#LarryFink#RayDalio#BNB#BTC

Venture Village Wall 🦄

@venturevillagewall · Post #4084 · 06.02.2025 г., 16:00

Ondo Finance Launches Layer 1 Blockchain Ondo Finance has officially unveiled the Ondo Chain, a new Layer 1 blockchain designed to facilitate financial markets at an institutional level. This initiative aims to enhance the tokenization of real-world assets, leveraging Blockchain technology to streamline future financial transactions. More details available here. #OndoFinance#Blockchain#RWA#Finance#Crypto#DeFi#InstitutionalFinance#Tokenization#RealWorldAssets#Layer1#CryptoNews#USDC#Innovation#TechNews#Investment#MarketUpdates#Tokenomics#FinanceTechnology#FinancialMarkets#Community