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: #handwashing
@ncdcgov · Post #3858 · 06.06.2023 г., 17:48
Let's work together to prevent the spread of #Lassafever. Be a guardian of proper sanitation in your community and promote frequent #Handwashing with soap and running water. Read our latest #LassaFever situation report: https://ncdc.gov.ng/diseases/sitreps/?cat=5&name=An%20update%20of%20Lassa%20fever%20outbreak%20in%20Nigeria
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@ncdcgov · Post #3634 · 05.12.2022 г., 14:37
Let's work together to prevent the spread of #Lassafever. Be a guardian of proper sanitation in your community and promote frequent #Handwashing with soap and running water. Read our latest #LassaFever situation report: https://ncdc.gov.ng/diseases/sitreps/?cat=5&name=An%20update%20of%20Lassa%20fever%20outbreak%20in%20Nigeria
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@ncdcgov · Post #3620 · 24.11.2022 г., 07:43
#Lassafever is preventable. Be a guardian of proper hand hygiene in your community Promote frequent #handwashing with soap and running water. #LassaFeverInfo
@ncdcgov · Post #4390 · 26.09.2024 г., 08:46
#Handwashing with soap under clean, running water is very vital to the prevention of #cholera. Important #handwashing moments⬇️ ✅While caring for the ill ✅After using the toilet ✅Before food preparation ✅Before and after eating ✅After touching high-contact surfaces #STOPcholera
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@ncdcgov · Post #3814 · 20.04.2023 г., 10:47
#Handwashing is a basic and effective tool against infections. If we do not become sick, we would not need to use #antimicrobials. Encourage your loved ones to practice frequent #handwashing with soap under running water. Do your part to prevent #AntimicrobialResistance
@ncdcgov · Post #4402 · 08.10.2024 г., 10:52
#HandHygiene with clean, running water is very vital to the prevention of #cholera. Important #handwashing moments⬇️ ✅While caring for the ill ✅After using the toilet ✅Before food preparation ✅Before and after eating ✅After touching high contact surfaces #TakeResponsibility
@ncdcgov · Post #4329 · 13.07.2024 г., 09:33
#HandHygiene with soap under clean, running water is very vital to the prevention of #cholera. Important #handwashing moments⬇️ ✅While caring for the ill ✅After using the toilet ✅Before food preparation ✅Before and after eating ✅After touching high contact surfaces #TakeResponsibility
@ncdcgov · Post #4312 · 20.06.2024 г., 08:52
#HandHygiene with clean, running water is very vital to the prevention of #cholera. Important #handwashing moments⬇️ ✅While caring for the ill ✅After using the toilet ✅Before food preparation ✅Before and after eating ✅After touching high contact surfaces #TakeResponsibility
@ncdcgov · Post #3874 · 26.06.2023 г., 09:16
#HandWashing remains the most basic and effective means to prevent the spread of infections. Frequent #handwashing with soap under running water at home, work, health facilities, gatherings, and public spaces is highly important to stay healthy. Let us all make #cleanhands a regular habit. It protects us all. #TakeResponsibility
@ncdcgov · Post #3612 · 20.11.2022 г., 11:04
#HandWashing is a basic &effective tool against infections. If we don't become sick, we would not need to use #antibiotics. Let us promote the practice of #handwashing in our homes & communities to prevent #AntimicrobialResistance together. #WorldAntimicrobialAwarenessWeek2022