SG MRT Updates
@sgmrt · Post #1504 · 20.09.2022 г., 23:04
[NSL]: Train services has resumed. Free regular bus services between #Yishun and #ToaPayoh has ceased. - SMRT
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Изворен канал @pythonotes · Post #411 · 9 фев.
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
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SG MRT Updates
@sgmrt · Post #1503 · 20.09.2022 г., 22:49
[NSL] UPDATE: Due to a track fault, pls add 15mins train travel time btwn #Yishun and #ToaPayoh. Free regular bus svcs from #Yishun to #ToaPayoh. - SMRT
SG MRT Updates
@sgmrt · Post #1501 · 20.09.2022 г., 22:23
[NSL]: Due to a track fault, pls add 15mins train travel time btwn #Yishun and #ToaPayoh. Free regular bus svcs from #Yishun to #ToaPayoh. Our station staff will assist. - SMRT
SG MRT Updates
@sgmrt · Post #1500 · 20.09.2022 г., 22:07
[NSL]: Due to a track fault, pls add 15mins train travel time btwn #Yishun and #ToaPayoh. - SMRT
SG MRT Updates
@sgmrt · Post #2386 · 08.07.2025 г., 01:54
[NSL] UPDATE: Track fault cleared, train services are progressively being restored. Please add 10mins train travel time from #ToaPayoh to #Somerset. - SMRT
SG MRT Updates
@sgmrt · Post #2318 · 16.04.2025 г., 04:29
[NSL]: Due to a track fault, please add 15mins travel time from #ToaPayoh to #Bishan towards #JurongEast. Free regular buses are available between #ToaPayoh and #Bishan. - SMRT
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SG MRT Updates
@sgmrt · Post #2317 · 16.04.2025 г., 04:14
[NSL]: Due to a track fault, please add 15mins train travel time from #ToaPayoh to #Bishan towards #JurongEast. Free regular buses are available between #ToaPayoh and #Bishan. Please look out for fellow commuters with special needs and lend a helping hand. We are sorry for - SMRT
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SG MRT Updates
@sgmrt · Post #2316 · 16.04.2025 г., 04:05
[NSL]: Due to a track fault, please add 15mins train travel time from #ToaPayoh to #Bishan towards #JurongEast. Free regular bus is available between #ToaPayoh and #Bishan. (Refer to Diagram 1) https://bit.ly/3YBCjlJ - SMRT
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SG MRT Updates
@sgmrt · Post #2314 · 16.04.2025 г., 03:29
[NSL]: Due to a track fault, pls add 15mins train travel time from #ToaPayoh to #Bishan towards #JurongEast. Free regular bus is available between #ToaPayoh and #Bishan. - SMRT
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SG MRT Updates
@sgmrt · Post #2226 · 10.01.2025 г., 10:44
[NSL] CLEARED: Fault cleared, train service between #MarinaSouthPier and #Bishan has resumed. Free regular bus svc btwn #MarinaSouthPier and #ToaPayoh has ceased. - SMRT
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SG MRT Updates
@sgmrt · Post #2225 · 10.01.2025 г., 10:39
[NSL] UPDATE: Train service between #MarinaSouthPier and #Bishan has resumed. Free regular bus svc btwn #MarinaSouthPier and #ToaPayoh has ceased. Trains are running normally. - SMRT
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SG MRT Updates
@sgmrt · Post #2224 · 10.01.2025 г., 10:34
[NSL] UPDATE: Train service between #MarinaSouthPier and #Bishan has resumed. Free regular bus svc btwn #MarinaSouthPier and #ToaPayoh is still available. - SMRT
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