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Jain Wun
Jain Wun

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[Linux] 讓程式在背景執行

#linux #backgroun #wade3c

讓command在背景跑

在要跑的指令結尾加上 &

jupyterlab &
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指令和 & 中間通常會空一格

同時又不會output 

/path/to/your/script.sh > /dev/null 2>&1 &
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1 代表螢幕輸出，2 代表錯誤輸出

檢視背景執行的process 

jobs
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Kill掉特定背景程式 

kill %1
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最後面的數字是取決於jobs給的number (會從1開始)

[1]-  Running                 sleep 100 &
[2]+  Running                 sleep 200 &
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讓ssh連線detach後程序能繼續跑

接在已經背景執行的程序後

disown  -h  %1
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或是可以在下背景時同時搭配nohup

nohup jupyterlab &
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nohup會把原本output到terminal的東西給寫到nohup.out

如果你的指令會一直輸出內容，就有可能讓nohup.out 這個檔案異常巨大

可以搭配上面的> /dev/null 2>&1 會將所有輸出直接丟掉

nohup /path/to/your/script.sh > /dev/null 2>&1 &
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其他套件

還能用像是screen/ tmux來假裝連線一直都在

Reference

How to run a command in the background and get no output?

[shell] 2>&1 是什麼意思 @ 痞客興的部落格 :: 痞客邦 ::

How do I use the nohup command without getting nohup.out?

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