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
Oops, we did it again 🤣
Reached 9th TP in just 22 hours in the VIP PRO channel!
Using a 5% entry you could've earned $211 with a $1000 deposit
ACCESS TO MANUAL TRADING for 70usdt/month
📊Dominate the market with Propheta AI Analyzer: AI uncovers hidden patterns with razor-sharp analysis, adapts on the fly with slick customization, and delivers next-level pair hunting — your edge for strategic supremacy! GET THE ACCESS
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#autotrading#crypto#passiveincome
👍 This is why we're here!
Reached 9th TP in just 7 hours in the VIP HTL channel!
With a 5% entry and a $1000 deposit, you could've earned $206!
ACCESS TO MANUAL TRADING for 70usdt/month
📊Dominate the market with Propheta AI Analyzer: AI uncovers hidden patterns with razor-sharp analysis, adapts on the fly with slick customization, and delivers next-level pair hunting — your edge for strategic supremacy! GET THE ACCESS
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#passiveincome#cryptobot#cryptochannel
Reached 9th TP in the VIP HTL channel!
Easy $309 with a 5% entry and a $1000 deposit!
ACCESS TO MANUAL TRADING for 70usdt/month
👉 We ain't just showing our results, we can show you the results of our VIP subscribers as well! Check them out: @propheta_reviews
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#btc#signalchannel#passiveincome
Oops, we did it again 🤣
Reached 9th TP in just 7 hours in the VIP HTL channel!
With a 5% entry and a $1000 deposit, you could've earned $204!
Feels good to be a Propheta VIP, man... 🏖ACCESS TO MANUAL TRADING for 70usdt/month
👉 It's time to get a moneyprinter of your own!
Get access: t.me/ProphetaAdmin_bot
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#indicator#trading#passiveincome
Oops, we did it again 🤣
Reached 9th TP in the VIP PRO channel!
You could've earned $603 with a 5% entry and a $1000 deposit!
Feels good to be a Propheta VIP, man... 🏖ACCESS TO MANUAL TRADING for 70usdt/month
👉 Multiplying deposits every day!
Not convinced? Contact us for a free trial - @propheta_help
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#AItrader#passiveincome#cryptochannel
👆 OMG! Would you look at that 👀
Reached 9th TP in just 11 hours in the VIP PRO channel!
$409 in profits with a 5% entry and a $1000 deposit!
That's why we call it the "Money Printer" 💴💷💵ACCESS TO MANUAL TRADING for 70usdt/month
👉 Did you know that many traders use our performance reports to build their own trading strategy? That's how useful they are! Check them out: @propheta_reports
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#AItrader#passiveincome#crypto
Now that's trading 👆🔥🔥🔥
Reached 9th TP in the VIP PRO channel!
Easy $100 with a 5% entry and a $1000 deposit!
VIPs getting filthy rich by the day ☺️🤑🤑ACCESS TO MANUAL TRADING for 70usdt/month
👉 Looking at those reports and can't believe what you're seing?
Go to our reports channel and audit us! @propheta_reports
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#AItrader#passiveincome#CryptoSignal
Reached 9th TP in the VIP CLUB channel!
With a 5% entry and a $1000 deposit, you could've earned $456!
ACCESS TO MANUAL TRADING for 70usdt/month
👉 OOooh yeah baby! And that's what we do every day! Every day milking those exchanges dry! Waiting for you: t.me/ProphetaAdmin_bot
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#tradingbot#cryptobot#passiveincome
👆 OMG! Would you look at that 👀
Reached 9th TP in just 84 minutes in the VIP PRO channel!
With a 5% entry and a $1000 deposit, you could've earned $610!
Every day we're on fire! 🔥🔥🔥ACCESS TO MANUAL TRADING for 70usdt/month
🚀Soar to success with Propheta AI Signals: AI-crafted precision signals, seamless trade automation, and a flawless Cornix integration — trade like a pro with zero hassle! GET THE ACCESS TO AI SIGNALS
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#signals#autotrading#passiveincome
Oops, we did it again 🤣
Reached 9th TP in the VIP CLUB channel!
Easy $300 with a 5% entry and a $1000 deposit!
ACCESS TO MANUAL TRADING for 70usdt/month
👉 Love the profits you're seeing, but can't afford the VIP cost?
Earn over $40 per one recommendation with zero risk using our referral program!
Click the link, then START >>> Referral Program
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#signals#passiveincome#autotrading
Reached 9th TP in the VIP PRO channel!
Easy $80 with a 5% entry and a $1000 deposit!
ACCESS TO MANUAL TRADING for 70usdt/month
👉 Get dozens of signals like these daily!
Subscribe now >>> t.me/ProphetaAdmin_bot
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#passiveincome#tradingindicator#signals
👆 Propheta living up to its name yet again 🔮
#ENAUSDT has reached 9th TP in the VIP PRO signals channel!👍
Easy $618 with a 5% entry and a $1000 deposit!
ACCESS TO MANUAL TRADING for 70usdt/month
👉 It's time to get a moneyprinter of your own!
Get access: t.me/ProphetaAdmin_bot
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#passiveincome#signalchannel#tradingindicator