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
According to @/mkgenie, the president of Michael Jackson's Chinese fanclub, and that had access to the list of recording artists of the MJ tribute project in 2023, Jungkook was one of the renowned singers that would get to sing one of the 10 never-released song written by Michael Jackson along with Bruno Mars, Doja Cat and Sza!
#JUNGKOOK
•@OUR_7_PRINCES•
“Yes, Love him! Incredible! His dancing, singing, songs, incredible machine. I love that dude, like he’s incredible”
— Omar Rudberg, a Venezuelan-Swedish singer and actor, about #Jungkook
#JUNGKOOK
•@OUR_7_PRINCES•
Rolling Stone UK Twitter Update
Read the full interview with #JungKook here
https://www.rollingstone.co.uk/music/features/jung-kook-bts-interview-rolling-stone-photos-57298/
-@All_BTS_Updates
GameSpot, a major American website providing news & reviews about video games, wrote an article about #Jungkook
“BTS's Jungkook Is A Streamer Now, Here Are The Games He's Played So Far”
https://www.gamespot.com/gallery/btss-jungkook-is-a-streamer-now-here-are-the-games-hes-played-so-far/2900-7286/
#INFO
•@OUR_7_PRINCES•
Famous actor Manny Jacinto said #Jungkook was his bias in a recent interview for Cosmopolitan
Q: Recently, a photo of you at a j-hope concert made the internet rounds. Who is your BTS bias?
🗣️ “Jungkook. I was a dancer, and I have this theory. Jungkook apparently trained in Los Angeles when he was younger, and I think we almost crossed paths and trained in the same studio around the same time. I mean, he is, like, eight years younger than me, but I saw videos and pictures of him training at the same studio. And I was like, wait, when was this? And this was around the same time, like, summer of 2012, 2011. I think he’s one of the best dancers on the team. But I also just dig his music.”
#INFO
•@OUR_7_PRINCES•