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
Fishy Business is OUT NOW! 🐟💰
No more waiting—our top catch of the year has surfaced! Fishy Business delivers high volatility undersea action with 25 paylines, Hold'n'Win thrills, and a shot at x5000 max wins. The Bassline Bonanza Free Spins make this one dive you won’t want to miss, as reels 2, 3 and 4 convert into one huge symbol for some truly huge wins! 🌊⚡
Ready to take the plunge? 🤿
🎰 SPIN IT: https://bit.ly/fishy-business-demo
#FishyBusiness#OutNow#HoldnWin#TrueSlots#TrueGames#TrueLab
🔞 | Play Responsibly
The Wait is Over — Hot Devil Slot is Here! 😈
Kick off our HOT Series with a spin that’s hotter than your ex and easily twice as fun. Ready to play with fire or just here to warm up? With classic gameplay turned up to inferno levels, every spin is destined to thrill.
Let the games begin! 🔥
🍒 IGNITE THE FUN: https://play.truelab.games/game/hot-devil-slot-v1/static/index.html
#HotDevilSlot#OUTNOW#igamingnews#TrueLab#TrueSlots#TrueGames
🔞 | Play Responsibly
BOOM! The Fruit Circus Party is in town tonight! 💥
The wait is over, so It's finally time to unleash those unlimited multiplicative multipliers and kick off the mayhem!
Use the Buy Bonus to plunge straight into the bonus round, where multipliers only head in one direction - UPWARDS. Because who needs limits, right?
Fruit Circus Party is OUT NOW! 🚀
➡️ SPIN IT: https://bit.ly/demo-fcp
#FruitCircusParty#OUTNOW#MultiplicativeMultipliers#BuyBonus#TrueLab#TrueGames#TrueSlots
🔥💸 Feeling Lucky? More like feeling HOT! 💸🔥
HOT MONEY SLOT, the second game in TrueLab’s Hot Series, is OUT NOW. We’ve taken those good old fire and fruit line 3x3 mechanics and turned up the heat with top-notch graphics and sound.
The Hot Series games are the perfect complement to any game portfolio. Do you prefer quick action with a classic vibe but can't get yourself to revisit the oldies? This one's for you. Let's go. 🎰
➡️ SPIN IT: https://bit.ly/Hot-Money-Demo
#HotMoneySlot#OutNow#HotSeries#iGamingNews#TrueLab#TrueGames#TrueSlots
🔞 | Play Responsibly
100 HOT SLOT is OUT NOW!
As the grand finale of our three-way TrueLab Hot Series, this classic slot features 100 lines for maximum enjoyment and fiery fun. 🍒🍉🍋🔥
Don’t miss out on this blazing conclusion to our Hot Series!
SPIN IT! ➡️https://bit.ly/100HS-Demo
#100HotSlot#HotSeries#OutNow#FruitAndFire#ClassicSlots#TrueLab#TrueGames#TrueSlots
This isn't just a book
It’s the story of the rhythm that moved the world and changed the face of music forever.
Don't just listen to the music understand the journey that made it happen.
https://www.amazon.co.uk/dp/B0GCMSHW1F
#BenEccles#OutNow#AmazonBooks#LaunchDay#MusicHistory#NewBookAlert#AfrobeatsWorld#ReadTheRhythm#OfficialRelease