使用crontab使用pcmanfm更改墙纸 [英] Changing wallpaper using pcmanfm by crontab

问题描述

我制作了一个简单的bash脚本，该脚本使用pcmanfm从我的墙纸目录更改墙纸以获取随机图片.就像这样:

I made a simple bash script that changes the wallpaper for a random picture from my wallpapers directory using pcmanfm. It's something like that:

#!/bin/bash

pcmanfm -w "$(find /home/likewise-open/MAPS/lucas.cardeal/Pictures/Wallpapers -type f | shuf -n1)"

我会自动想要它，所以您将脚本放在crontab上.但是，当crontab调用它时，它没有任何作用.我的脚本怎么了?我该如何解决?

I want that automatically, so u put the script on crontab. But it has no effect when its called by crontab. What's wrong with my script? How can I fix it?

谢谢

推荐答案

当设置为cron作业时，该脚本将给您X11授权错误.为防止这种情况，只需在脚本中添加export DISPLAY=:0和export XAUTHORITY=/home/username/.Xauthority(用用户名更改username):

That script will give you a X11 authorization error when is set as cron job. To prevent this, just add export DISPLAY=:0 and export XAUTHORITY=/home/username/.Xauthority (change username with your user name) in your script:

#!/bin/bash

export DISPLAY=:0
export XAUTHORITY=/home/username/.Xauthority   #change `username` with your user name

pcmanfm -w "$(find /home/likewise-open/MAPS/lucas.cardeal/Pictures/Wallpapers -type f | shuf -n1)"

附录:更新导致以上脚本在Lubuntu 16.04及更高版本中损坏.请参阅此stackoverflow答案 https://stackoverflow.com/a/46259031/5895207 了解需要使用的其他环境变量在脚本中指定.

ADDENDUM: An update caused the above script to break in Lubuntu 16.04 and above. See this stackoverflow answer https://stackoverflow.com/a/46259031/5895207 for the additional environment variable that needs to be specified in the script.

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