Bash脚本在使用i3blocks在后台启动程序后暂停 [英] Bash script pauses after starting program in background with i3blocks

问题描述

我试图在i3blocks中创建一个块，当我单击它时将启动Spotify(如果已关闭).

I'm trying to make a block in i3blocks that will launch Spotify (if it's closed) when I click on it.

大多数情况下都可以正常工作，但是当Spotify启动时，脚本会停止运行，直到关闭Spotify并且该块变得无用为止.

It mostly works fine but when Spotify launches the script just stops until Spotify is closed and the block becomes useless.

如果我重新加载i3，Spotify也将关闭.

Also if i reload i3 Spotify will close.

我尝试过在后台(&)中启动Spotify并使用disown标志.但是问题一直在发生，我还在i3blocks配置文件中尝试了相同的操作(在后台启动脚本).

I've tried making Spotify launch in the background (&) and using the disown flag. but the problem keeps happening, I've also tried the same thing in the i3blocks config file (launching the script in the background).

#!/bin/sh

if pgrep spotify >/dev/null

then

spotifycli --status

case $BLOCK_BUTTON in

1) spotifycli --playpause;;

2) spotifycli --prev;;

3) spotifycli --next;;

esac

else

echo 

case $BLOCK_BUTTON in

1) spotify & disown; sleep 3; spotifycli --play;;

esac

fi

推荐答案

我找到了解决方案，但我忘记了将Spotify的输出重定向到/dev/null.并且由于没有给出EOF，因此该块卡住了，无法读取Spotify的输出.

I found the solution, I forgot to redirect spotify's output into /dev/null. and since it gives no EOF the block was stuck reading spotify's output.

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