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: #infrastructuredevelopment
@MyGovHindi · Post #6839 · 12.07.2023 г., 09:11
विकास पथ को गति दे रहे भारत के राष्ट्रीय राजमार्ग।। 🛣️ भारत के सड़क नेटवर्क के विस्तार के साथ-साथ प्रगति की यात्रा का गवाह बनें। यह परिवर्तन वास्तव में #NewIndia की गति और विकास का प्रमाण है। #InfrastructureDevelopment #Highway
@MyGovCoronaNewsdesk · Post #13234 · 07.08.2024 г., 15:44
Experience high-speed connectivity for industrial centres with the Nashik Phata – Khed Corridor! Enhancing travel between Pune and Nashik along NH-60, this corridor reduces congestion around Pimpri-Chinchwad, fostering industrial growth and smoother transportation. #InfrastructureDevelopment#NewIndia #TransformingIndia
@MyGovCoronaNewsdesk · Post #13233 · 07.08.2024 г., 13:42
Guwahati's connectivity gets a major boost with the new Northern Guwahati Bypass! Upgrading the existing bypass and constructing a major bridge over the Brahmaputra, this project will significantly improve travel efficiency and support regional development. #InfrastructureDevelopment#NewIndia #TransformingIndia
@MyGovCoronaNewsdesk · Post #13232 · 07.08.2024 г., 12:41
The Kanpur Ring Road project will complete the 6-lane National Highway Ring around Kanpur! Enhancing traffic flow and reducing congestion, this project is set to transform Kanpur’s connectivity, making travel within the city and to other regions smoother and faster. #InfrastructureDevelopment#NewIndia #TransformingIndia
@MyGovCoronaNewsdesk · Post #13231 · 07.08.2024 г., 11:39
Boost industrial connectivity with the Pathalgaon & Gumla sections of the Raipur-Ranchi National High-Speed Corridor! Linking mining areas in Gumla, Lohardaga, Raigarh, Korba, and Dhanbad to industrial zones in Raipur, Durg, Bilaspur, and Bokaro, this project promotes faster, efficient transportation. #InfrastructureDevelopment#NewIndia #TransformingIndia
@MyGovCoronaNewsdesk · Post #13230 · 07.08.2024 г., 09:38
Pilgrims can now reach Ram Mandir via the Ayodhya Ring Road! This project facilitates quicker movement for devotees visiting the sacred site, enhancing the spiritual journey and supporting regional tourism and infrastructure development. #InfrastructureDevelopment#NewIndia #TransformingIndia
@MyGovCoronaNewsdesk · Post #13229 · 07.08.2024 г., 08:07
Ensure smooth freight movement with the Tharad – Deesa – Mehsana – Ahmedabad National High-Speed Corridor! This corridor links industrial regions in Punjab, Haryana, and Rajasthan to major ports in Maharashtra, enhancing logistics efficiency and boosting industrial growth. #InfrastructureDevelopment#NewIndia #TransformingIndia
@MyGovCoronaNewsdesk · Post #13228 · 07.08.2024 г., 07:07
Unlock the North East with the Kharagpur-Moregram National High-Speed Corridor! Connecting West Bengal, Odisha, and Andhra Pradesh to the North-East, this project will increase traffic capacity by over 5 times, promoting regional development and improving travel efficiency across these states. #InfrastructureDevelopment#NewIndia #TransformingIndia
@MyGovCoronaNewsdesk · Post #13227 · 07.08.2024 г., 06:06
Travel faster to iconic landmarks with the Agra-Gwalior National High-Speed Corridor! Enhancing connectivity to tourist hotspots like Taj Mahal, Agra Fort, and Gwalior Fort, this corridor will double traffic capacity and cut travel time by 50%. #InfrastructureDevelopment#NewIndia #TransformingIndia
@MyGovCoronaNewsdesk · Post #13226 · 07.08.2024 г., 05:04
Experience seamless travel with 8 national high-speed road corridors spanning 936 km! With an investment of Rs 50,655 crore, these corridors are set to revolutionize connectivity and boost economic growth across India. #InfrastructureDevelopment#NewIndia #TransformingIndia
@MyGovCoronaNewsdesk · Post #12823 · 12.07.2023 г., 09:10
India's National Highways - From Roadblocks To Road Wonders! Witness the wide ride of progress as India's road network expands, solidifying its position as one of the largest in the world. This transformation is truly a testament to #NewIndia's growth and development. #InfrastructureDevelopment #Highway