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
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 1 day in the VIP CLUB channel!
You could've earned $311 with a 5% entry and a $1000 deposit!
ACCESS TO MANUAL TRADING for 70usdt/month
👉 Did you know that our referral partners receive extra discounts, even cumulative with the special offer prices?
START >>> Referral Program
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#AItrader#signalchannel#buycrypto
Reached 9th TP in just 4 hours in the VIP HTL channel!
Every day we're on fire! 🔥🔥🔥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!
#AItrading#signalchannel#crypto
Reached 9th TP in just 3 hours in the VIP PRO channel!
Easy $513 with a 5% entry and a $1000 deposit!
Every day we're on fire! 🔥🔥🔥ACCESS TO MANUAL TRADING for 70usdt/month
👉 Time to start earning for real!
Join us >>> t.me/ProphetaAdmin_bot
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#cryptochannel#signalchannel#AItrader
👆 OMG! Would you look at that 👀
Reached 9th TP in the VIP CLUB channel!
VIPs getting filthy rich by the day ☺️🤑🤑ACCESS TO MANUAL TRADING for 70usdt/month
👉 Join us and earn big!
Start here: t.me/ProphetaAdmin_bot
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#trading#bitcoinnews#signalchannel
👀 Well, would you look at that! 👆
Reached 9th TP in the VIP HTL channel!
$305 in profits with a 5% entry and a $1000 deposit!
VIPs getting filthy rich by the day ☺️🤑🤑ACCESS TO MANUAL TRADING for 70usdt/month
💰Turn data into gains with Propheta AI Analyzer: deep AI analysis spots trends with surgical precision, tweaks in seconds to your goals, and pair hunting pumps your trading to the next level — this is the evolution of the game! GET THE ACCESS
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#cryptobot#signalchannel#bitcoinnews
👆 Propheta living up to its name yet again 🔮
Reached 9th TP in the VIP PRO channel!
With a 5% entry and a $1000 deposit, you could've earned $409!
ACCESS TO MANUAL TRADING for 70usdt/month
👉 We know how to earn 3-4-5 digit amounts without any deposit, with zero risk! Click the link, then START >>> Referral Program
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#tradingviewindicator#signalchannel#signals
👍 This is why we're here!
Reached 9th TP in the VIP HTL channel!
Feels good to be a Propheta VIP, man... 🏖ACCESS TO MANUAL TRADING for 70usdt/month
💸Turn time into cash with Propheta AI Signals: pinpoint entries and exits, AI-powered automation, and perfect Cornix compatibility — your automated win streak! GET THE ACCESS TO AI SIGNALS
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#tradingbot#signalchannel#AItrader
👆 OMG! Would you look at that 👀
Reached 9th TP in the VIP CLUB channel!
Using a 5% entry you could've earned $453 with a $1000 deposit
VIPs getting filthy rich by the day ☺️🤑🤑ACCESS TO MANUAL TRADING for 70usdt/month
👉 Looking for a way to earn not only using signals?
Join our generous referral program and earn over $40 per recommendation!
Click the link, then START >>> Referral Program
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#AItrade#indicator#signalchannel
👆 Propheta living up to its name yet again 🔮
Reached 9th TP in just 20 hours in the VIP PRO channel!
Every day we're on fire! 🔥🔥🔥ACCESS TO MANUAL TRADING for 70usdt/month
👉 Join us and earn big!
Start here: t.me/ProphetaAdmin_bot
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#CryptoSignal#signalchannel#signals
#ENAUSDT reached 9th TP!
Signal from our VIP HTL channel!
You could've earned $302 with a 5% entry and a $1000 deposit!
VIPs getting filthy rich by the day ☺️🤑🤑ACCESS TO MANUAL TRADING for 70usdt/month
👉 Did you know that our referral partners receive extra discounts, even cumulative with the special offer prices?
START >>> Referral Program
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#cryptochannel#signalchannel#cryptobot
👆 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