如何在BASH中寫入多行字符串文件

Question

我想在從bash腳本中提問時重寫配置文件。這是我的代碼。

function quality { 
    echo $1 > ~/.livestreamerrc 
    echo ".livestreamer was modified!" 
} 

best="stream-types=hls 
hls-segment-threads=4 
default-stream=best 
player=vlc --cache 5000" 

read -p "Set quality: " INPUT 
if [[ "$INPUT" == "!best" ]]; then 
    quality $best 
fi 

此代碼執行以下操作以.livestreamer文件雖然。

$cat ~/.livestreamerrc 
stream-types=hls 

爲什麼？

Answer 1

將其更改爲

quality "$best" # double quotes to avoid word splitting 

然後

echo "$1" > ~/.livestreamerrc 

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^{注意：值得一試的[ shellcheck ] documentation.Also，像INPUT完全大寫的變量是保留給系統。}