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: #friendship
@QuietWorld · Post #6803 · 26.10.2019 г., 23:30
If it’s painful for you to criticize your friends, you’re safe in doing it; if you take the slightest pleasure in it, that’s the time to hold your tongue. – Alice Miller #friendship@quietworld🍃
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@QuietWorld · Post #6790 · 25.10.2019 г., 23:30
A true friend never gets in your way unless you happen to be going down. #friendship@quietworld🍃
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@QuietWorld · Post #6788 · 25.10.2019 г., 13:00
Friendships multiply joys and divide griefs. — Uvuvwevwevwe (actually idk) #friendship@quietworld🍃
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@QuietWorld · Post #6784 · 24.10.2019 г., 23:30
Be slow in choosing a friend, slower in changing. – Benjamin Franklin #friendship@quietworld🍃
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@QuietWorld · Post #6225 · 12.03.2019 г., 01:28
Don’t be that clingy friend and respect if your friend has other friends and doesn’t have to revolve their world around you. #friendship@quietworld🍃
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@QuietWorld · Post #6216 · 11.03.2019 г., 09:37
As you get older real friendships don’t mean you see each other everyday. In fact some of the realest friends barely see each other, if you both are really out chasing your bags, tryna better your futures, you probably won’t see each other as often. #friendship@quietworld🍃
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@talks · Post #88 · 10.10.2016 г., 14:16
#friendship
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@PensivePost · Post #5777 · 28.05.2022 г., 17:12
Dear folks, this is a translation of one famous poem of one famous poet into English. Can you please review it and let me know, if it sounds correct, or does it contain enything weird, odd ? /********************************************/ I like to feel that I'm not sick with you I like to know that sickness yours is yours not mine That heavy ball of earth won’t stray off from its course Away from our footprints , fading in sunshine I love that I could funny be Bewildered, clumsy , not wordplaying not turning red upon sleeves touching game not turning pale when see you on your knees I love to see you hugging someone else Before my eyes , reposefully and calmly Not sending me to fire glowing hell To burn forever for not kissing me , my darling I like that mentioning my name is not your habit That tender name you don't utter day-and-night in vain That no one's gonna sing Hallelujah on our wedding In silence of the church, one sunny autumn day Thank you for love, with all your heart and soul That brings me peace at night, unconscious, unaware Thank you for rare meetings if at all So nice, That never in the moonlight do we stroll So great that sun warms not us, soaring high elsewhere So pity, that I am not sick with you So bad, that sickness yours is yours not mine #review #friendship
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@QuietWorld · Post #6804 · 27.10.2019 г., 06:30
We love those who know the worst of us and don’t turn their faces away. #love#friendship @quietworld🍃
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@QuietWorld · Post #6806 · 27.10.2019 г., 13:00
An enemy who tells the truth contributes infinitely more to our improvement than a friend who deludes us. #friendship#truth @quietworld🍃
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@QuietWorld · Post #6805 · 27.10.2019 г., 08:30
Only your real friends will tell you when your face is dirty. – Sicilian Proverb #friendship#truth @quieworld🍃
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@QuietWorld · Post #6783 · 24.10.2019 г., 13:00
One does not make friends. One recognizes them. — Garth Henrichs #friendship#deep @quietworld🍃
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