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: #bbclearningenglish
@english_bbc_learning · Post #3811 · 20.12.2025 г., 15:34
🎄 Do you know how to respond when an English speaker wishes you a merry Christmas?’ Try this quiz - we’ll tell you the answer later! Are there any other ways you could respond? 🤶 [Image: Getty] EXTRA: This festive season, we're sharing some of our own stories about Christmas and New Year. Link in bio. #learnenglish#english#bbclearningenglish
@english_bbc_learning · Post #3761 · 16.11.2025 г., 08:45
😊 The next time you're feeling 'happy', try using one of these synonyms instead and boost your vocabulary! ✍️ See if you can use one of them in the comments. Note: not all the words are perfect synonyms. Pay attention to the context and grammar. MORE: Is happiness the key to success? 🔎 Find out in this episode of 6 Minute English. Click on the link in our bio. #englishlesson#englishwords#englishvocabulary#english#bbclearningenglish
@english_bbc_learning · Post #3759 · 10.11.2025 г., 09:49
🍱🥘🍲 The next time you eat something delicious, try using one of these synonyms instead and boost your vocabulary! ✍️ See if you can use one of them in the comments. Note: not all the words are perfect synonyms. Pay attention to the context and grammar. 🎧 MORE: Click on the link in our bio to listen to a 6 Minute English box set on the topic of food. #englishlesson#englishwords#englishvocabulary#english#bbclearningenglish
@english_bbc_learning · Post #3747 · 03.11.2025 г., 20:52
🚀 Take your English vocabulary to the next level by learning these alternatives to ‘less than’! Can you use one in a sentence - and do you know any more? 👀 Note: these words may not be exact synonyms - pay attention to the context. #englishlesson#englishwords#englishvocabulary#english#bbclearningenglish#englishteacher#lessthan
@english_bbc_learning · Post #3722 · 13.10.2025 г., 18:23
🤢😔 Everybody gets sick from time to time… so we made a vocabulary table with useful sickness-related English for you to learn, use, and share with a friend! 😄 Do you know any more English vocabulary related to illness? 👇 #englishvocabulary#learnenglish#englishphrases#britishenglish#EFL#ESL#ELT#vocab#bbclearningenglish
@english_bbc_learning · Post #3690 · 19.09.2025 г., 08:45
😱 Lots of animal species are at risk of extinction. 🐘🦁🦒Can you choose the correct word to fill the gap? We’ll tell you the correct answer later! (Image: Getty) #environment#extinction#extinct#earth#animals#learnenglish#bbclearningenglish#vocab#englishquiz
@english_bbc_learning · Post #3809 · 15.12.2025 г., 05:11
Here are 5 linkers that you can add to your conversation to make it flow better and sound more fluent! 1) To be honest – I’m going to give my opinion (even if it’s insulting!) 2) Actually – to correct information or say something surprising 3) Mind you – I’ve just thought of something that contrasts what I was saying 4) By the way – I’m going to introduce a new topic I’ve just remembered 5) Anyway – I’m going to finish the conversation or change topic now Add them to your conversations to help them flow! Which one is your favourite? #learnenglish#speakenglish#vocabulary#bbclearningenglish#britishenglish#formalenglish#linkers#naturalenglish#nativespeakerenglish#conversationskills#ncoversationalenglish
@english_bbc_learning · Post #3689 · 07.09.2025 г., 03:15
❓❓❓Do you know how to respond when an English speaker asks ‘Is the post office open today?’ 🏣Try this quiz - we’ll tell you the answer later! Are there any other ways you could respond?👇👇👇 [Image: Getty] #learnenglish#socialenglish#correctresponse#englishquiz#english#englishvocabulary#learnenglish#englishphrases#contraction#question#shortanswer#britishenglish#EFL#ESL#ELT#vocab#bbclearningenglish