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: #freelearning
@SkillDiscounts · Post #10143 · 17.03.2026 г., 17:03
Upgrade your skills for free: 🧑🎓Master Course : Making the Business Case for Sustainability ▪️▪️▪️▪️▪️▪️▪️▪️ 🧑🎓Teaching Methods, Teaching Quality & Teaching Delivery 3.0 ▪️▪️▪️▪️▪️▪️▪️▪️ ⚠️ Limited time offers 🧑🎓🧑🎓🧑🎓 https://SkillDiscounts.com/ @SkillDiscounts #Learning_for_free #FreeCoupon #FreeLearning
@SkillDiscounts · Post #10140 · 17.03.2026 г., 04:43
Upgrade your skills for free: 🧑🎓Microsoft Excel - Beginner To Expert ▪️▪️▪️▪️▪️▪️▪️▪️ ⚠️ Limited time offers 🧑🎓🧑🎓🧑🎓 https://SkillDiscounts.com/ @SkillDiscounts #Learning_for_free #FreeCoupon #FreeLearning
@SkillDiscounts · Post #10136 · 16.03.2026 г., 21:30
Upgrade your skills for free: 🧑🎓Professional Diploma in Project Management ▪️▪️▪️▪️▪️▪️▪️▪️ ⚠️ Limited time offers 🧑🎓🧑🎓🧑🎓 https://SkillDiscounts.com/ @SkillDiscounts #Learning_for_free #FreeCoupon #FreeLearning
@SkillDiscounts · Post #10135 · 16.03.2026 г., 19:50
Upgrade your skills for free: 🧑🎓Master Course in Smart Cities, Urban Planning & Development ▪️▪️▪️▪️▪️▪️▪️▪️ ⚠️ Limited time offers 🧑🎓🧑🎓🧑🎓 https://SkillDiscounts.com/ @SkillDiscounts #Learning_for_free #FreeCoupon #FreeLearning
@SkillDiscounts · Post #10134 · 16.03.2026 г., 19:16
Upgrade your skills for free: 🧑🎓Master Course in Corporate Social Responsibility (CSR) ▪️▪️▪️▪️▪️▪️▪️▪️ ⚠️ Limited time offers 🧑🎓🧑🎓🧑🎓 https://SkillDiscounts.com/ @SkillDiscounts #Learning_for_free #FreeCoupon #FreeLearning
@SkillDiscounts · Post #10133 · 16.03.2026 г., 17:36
Upgrade your skills for free: 🧑🎓Master Course in Climate Change Impact on Business ▪️▪️▪️▪️▪️▪️▪️▪️ 🧑🎓Multigenerational Leadership & Reskilling Your Organization ▪️▪️▪️▪️▪️▪️▪️▪️ 🧑🎓Master Course in Project Management 2.0 ▪️▪️▪️▪️▪️▪️▪️▪️ ⚠️ Limited time offers 🧑🎓🧑🎓🧑🎓 https://SkillDiscounts.com/ @SkillDiscounts #Learning_for_free #FreeCoupon #FreeLearning
@SkillDiscounts · Post #10025 · 28.02.2026 г., 15:11
Upgrade your skills for free: 🧑🎓AI-Powered Change Management for Digital Transformation ▪️▪️▪️▪️▪️▪️▪️▪️ ⚠️ Limited time offers 🧑🎓🧑🎓🧑🎓 https://SkillDiscounts.com/ @SkillDiscounts #Learning_for_free #FreeCoupon #FreeLearning
@SkillDiscounts · Post #10023 · 28.02.2026 г., 02:16
Upgrade your skills for free: 🧑🎓Curso Completo de Mikrotik. Configuraciones y mucha Práctica ▪️▪️▪️▪️▪️▪️▪️▪️ 🧑🎓Programador Java en 37 Días Con práctica de Entrevista y más ▪️▪️▪️▪️▪️▪️▪️▪️ 🧑🎓NumPy, SciPy, Matplotlib & Pandas A-Z: Machine Learning ▪️▪️▪️▪️▪️▪️▪️▪️ ⚠️ Limited time offers 🧑🎓🧑🎓🧑🎓 https://SkillDiscounts.com/ @SkillDiscounts #Learning_for_free #FreeCoupon #FreeLearning
@SkillDiscounts · Post #10022 · 28.02.2026 г., 01:43
Upgrade your skills for free: 🧑🎓Carbon Capture (CCUS): Governance, Policy, & Social License ▪️▪️▪️▪️▪️▪️▪️▪️ 🧑🎓The Complete JavaScript Course: From Zero to Expert ▪️▪️▪️▪️▪️▪️▪️▪️ 🧑🎓Certificado Profissional em Liderança e Gestão ▪️▪️▪️▪️▪️▪️▪️▪️ ⚠️ Limited time offers 🧑🎓🧑🎓🧑🎓 https://SkillDiscounts.com/ @SkillDiscounts #Learning_for_free #FreeCoupon #FreeLearning
@SkillDiscounts · Post #10020 · 28.02.2026 г., 01:09
Upgrade your skills for free: 🧑🎓AI for Customer Success: Transforming Customer Relationships ▪️▪️▪️▪️▪️▪️▪️▪️ 🧑🎓AI Trading & Crypto Intelligence Masterclass ▪️▪️▪️▪️▪️▪️▪️▪️ 🧑🎓Language Learning with AI: Practical Skills Guide ▪️▪️▪️▪️▪️▪️▪️▪️ ⚠️ Limited time offers 🧑🎓🧑🎓🧑🎓 https://SkillDiscounts.com/ @SkillDiscounts #Learning_for_free #FreeCoupon #FreeLearning
@SkillDiscounts · Post #10018 · 28.02.2026 г., 00:36
Upgrade your skills for free: 🧑🎓Mastering Manus: AI Automation for Marketing & Content ▪️▪️▪️▪️▪️▪️▪️▪️ 🧑🎓AI for Business Analysts ▪️▪️▪️▪️▪️▪️▪️▪️ 🧑🎓Entrepreneurial Guide to AI Strategy ▪️▪️▪️▪️▪️▪️▪️▪️ ⚠️ Limited time offers 🧑🎓🧑🎓🧑🎓 https://SkillDiscounts.com/ @SkillDiscounts #Learning_for_free #FreeCoupon #FreeLearning
@SkillDiscounts · Post #10017 · 28.02.2026 г., 00:03
Upgrade your skills for free: 🧑🎓Emotional Intelligence in Teams and Collaboration ( EQ ) ▪️▪️▪️▪️▪️▪️▪️▪️ 🧑🎓Data Visualization: Advanced Storytelling for Sales Success ▪️▪️▪️▪️▪️▪️▪️▪️ 🧑🎓AI-Driven Business Process Modeling ▪️▪️▪️▪️▪️▪️▪️▪️ ⚠️ Limited time offers 🧑🎓🧑🎓🧑🎓 https://SkillDiscounts.com/ @SkillDiscounts #Learning_for_free #FreeCoupon #FreeLearning