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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 #65371 · 13.04.2026 г., 02:55

🚀 BTC Decline Affects Whale's Investment Strategy On April 13, BTC experienced a slight decline, impacting the HYPE token, which fell before recovering above $41. According to BlockBeats, a major investor known for profiting from a long BTC exchange rate strategy is facing pressure, with a capital withdrawal of $1.9 million this week. The investor currently holds a BTC long position with 40x leverage, valued at $30.06 million at an average price of $70,557, and a HYPE short position with 5x leverage, valued at $23.03 million at an average price of $38.93. The positions were established during a previous HYPE surge, with the full setup completed by March 20, totaling approximately $53 million. Since the establishment of these positions, the investor has incurred a net loss of about $1.32 million, with the portfolio yet to achieve positive returns. #BTC#HYPE#WhaleInvestment#Leverage#CapitalWithdrawal#CryptoStrategy#BTCDecline#InvestmentLoss#CryptoMarket

Crypto M - Crypto News

@CryptoM · Post #64862 · 10.04.2026 г., 05:14

🚀 Cryptocurrency Whale Faces Losses Amid Market Fluctuations On April 10, according to BlockBeats, monitoring by Hyperinsight revealed that a major cryptocurrency investor, known for leveraging market downturns, has faced challenges with their trading strategy. This investor has historically profited by betting on the 'BTC/altcoin' exchange rate during market declines. However, with Bitcoin stabilizing and HYPE gaining strength, surpassing $40 with a daily increase of over 5%, both sides of the investor's strategy are under pressure, resulting in a daily capital withdrawal of $900,000. Currently, the investor holds a long position in Bitcoin with a 40x leverage, valued at $30.4 million, and a short position in HYPE with a 5x leverage, valued at $23.2 million. The investor began positioning during HYPE's previous surge and completed their setup by March 20, with a total scale of approximately $53 million. Since then, they have incurred a net loss of about $300,000, without achieving positive returns. Previously, this investor employed a similar strategy, investing around $50 million to go long on Bitcoin while shorting eight other cryptocurrencies, including ETH, XRP, and ADA. This approach proved successful, maintaining a total cycle profit of approximately $37.1 million. #Cryptocurrency#Whale#MarketFluctuations#Bitcoin#HYPE#Leverage#CapitalWithdrawal#BTC#Altcoin#InvestorLosses#CryptoStrategy#BlockBeats#Hyperinsight#XRP