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: #stayprotected
@ncdcgov · Post #4552 · 09.10.2025 г., 08:11
Vaccines strengthen our immunity and protect us from many preventable diseases. 💪 They help keep individuals, families, and communities safe and healthy. ✅️Ensure you and your loved ones stay up to date and complete your vaccine doses — it’s one of the best ways to stay protected and live healthy! Stay informed. Stay protected. Stay healthy. ✔️ # #NCDCNigeria#StayProtected#HealthyNigeria#HealthyLiving
@ncdcgov · Post #4630 · 01.04.2026 г., 10:57
#WellnessWednesday: Boost Your Immunity, Stay Protected! 🛡️🥦 Your immune system is your first line of defense against infections, including Mpox and other diseases. Keep it strong with these healthy habits: 🥗 Eat a balanced diet rich in fruits, vegetables, and proteins 🚶♂️ Stay active with regular exercise 💧 Hydrate: drink plenty of water daily 😴 Get enough sleep to support immune function 🧼 Practice good hygiene: wash hands frequently and keep surroundings clean 💉 Stay up to date on vaccinations where applicable A strong immune system means a healthier you! Take charge of your wellness today. #WellnessWednesday#HealthyLiving#BoostYourImmunity#StayProtected#NCDCNigeria
@ncdcgov · Post #4449 · 12.03.2025 г., 11:50
#WellnessWednesday: Boost Your Immunity, Stay Protected! 🛡️🥦 Your immune system is your first line of defense against infections, including Mpox and other diseases. Keep it strong with these healthy habits: 🥗 Eat a balanced diet rich in fruits, vegetables, and proteins 🚶♂️ Stay active with regular exercise 💧 Hydrate—drink plenty of water daily 😴 Get enough sleep to support immune function 🧼 Practice good hygiene—wash hands frequently and keep surroundings clean 💉 Stay up to date on vaccinations where applicable A strong immune system means a healthier you! Take charge of your wellness today. #WellnessWednesday#HealthyLiving#BoostYourImmunity#StayProtected#NCDCUpdates
@ncdcgov · Post #4559 · 17.10.2025 г., 13:24
#Yellow fever is a serious but vaccine preventable viral disease. It spreads through the bite of infected mosquitoes Protect yourself by: ▶️Getting vaccinated💉 ▶️Maintaining a clean environment to stop mosquitoes from breeding. ▶️ Use insect repellent and sleep under treated nets to avoid mosquito bites. ⚠️ Report early to a nearby health facility if you feel unwell with symptoms like fever, headache, or yellowing of the eyes/skin. #YellowFever#StayProtected#HealthyNigeria#NCDCNigeria