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
NEW CONTEST🧘🧘🧘🧘
We are the OG..🔝
We are MONK!🆒
Durov it s a MONK not only on Telegram username but in his concept of life, in his mindset, in all he what to do.
Study his post on his official channel (Telegram, Instangram and X) and you will be excited by the truth that will appear to you.
Durov is a #MONK!👍👍👍
No others narrative, only this is the OG.🆒🆒
Show this truth to the world!!
The best two post on X and on the Main Chat on Telegram will win 15 💎 and 10 💎 respectively.
END OF CONTEST 25 AUGUST AT 8 P.M.👀👀
🚀 Understanding Different Personality Types in Modern Society
PANews posted on X (formerly Twitter) about various personality types observed in contemporary society. The discussion highlights four distinct archetypes: the Cynic, who often expresses skepticism but frequently ends up managing difficult situations; the Strategist, who appears to be disconnected but becomes highly productive as deadlines approach; the Resourceful, who thrives under narratives of scarcity and tends to be frugal; and the Monk, who practices restraint and detachment, leading a life of minimal desires and low volatility.
#personalitytypes#modernlife#cynic#strategist#resourceful#monk#society
🚀 Overview of SBTI's 28 Personality Types
PANews posted on X (formerly Twitter) about the 28 distinct personality types identified by SBTI. These include the 'Controller' who excels in task management and situation handling, and the 'ATM-er' who invests time and emotional value. The 'Dior-s' represents a self-deprecating narrative under pressure, while the 'BOSS' is goal-oriented with strong organizational skills. The 'Thanker' leans towards positive feedback and gratitude, whereas the 'Oh-No' personality anticipates risks and negative outcomes. The 'GoGo' is action-driven, and the 'Sexy' emphasizes style and attraction. The 'Lover' is emotionally invested, and the 'Mum' is nurturing and concerned. The 'Fake' wears a social mask, and the 'OJBK' is conflict-averse. The 'Malo' resonates with the working class, while the 'Joker' uses humor to mask vulnerability. The 'WOC!' is highly reactive, and the 'Thinker' is analytical. The 'Shit' is cynical but often cleans up messes, while the 'ZZZZ' strategically disconnects. The 'Poor' is resource-conscious, and the 'Monk' is restrained and detached. The 'IMSB' is self-deprecating, and the 'Solo' is independent. The 'FUCK' is direct and rebellious, while the 'Dead' feels drained. The 'IMFW' has a low self-assessment, and the 'HHHH' finds humor first. The 'Drunk' is a hidden personality, and the 'Kanye' remains mysterious.
#SBTI#PersonalityTypes#Controller#ATM#Dior#BOSS#Thanker#OhNo#GoGo#Sexy#Lover#Mum#Fake#OJBK#Malo#Joker#WOC#Thinker#Shit#ZZZZ#Poor#Monk#IMSB#Solo#FUCK#Dead#IMFW#HHHH#Drunk#Kanye