[英]BASH script to switch between PI modes
I'm trying to create a BASH script for my Pi3 along with a desktop icon that will change the amount of gpu_mem allocated and rename the icon to the mode that is not in use. 我正在尝试为Pi3创建一个BASH脚本以及一个桌面图标,该图标将更改分配的gpu_mem数量,并将图标重命名为未使用的模式。
#!/bin/bash
s1=$(grep gpu_mem /boot/config.txt)
s2="gpu_mem=156"
if [ "$s1" == "$s2" ]
then
sudo sed -i 's,^\(gpu_mem=\).*,\1'512',' /boot/config.txt
sed -i 's,^\(Name[en_GB.UTF-8]=\).*,\1'Desktop Mode',' \
/home/pi/Desktop/GPUMode.desktop
else
sudo sed -i 's,^\(gpu_mem=\).*,\1'156',' /boot/config.txt
sed -i 's,^\(Name[en_GB.UTF-8]=\).*,\1'Game Mode',' \
/home/pi/Desktop/GPUMode.desktop
fi
Now the memory allocation part of the script works fine, but when I execute the line of code below for testing purposes: 现在,脚本的内存分配部分可以正常工作,但是当我出于测试目的执行以下代码行时:
sed -i 's,^\(Name[en_GB.UTF-8]=\).*,\1'Desktop Mode',' \
/home/pi/Desktop/GPUMode.desktop
I get the error: 我得到错误:
sed: -e expression #1, char 34: unterminated `s' command
Any Ideas? 有任何想法吗?
Try this instead using GNU awk instead of GNU sed for inplace editing: 尝试使用GNU awk代替GNU sed进行就地编辑:
sudo awk -i inplace '
BEGIN { FS=OFS="="; game_mem=156; desk_mem=512 }
(ARGIND == 1) && ($1 == "gpu_mem") {
if ( $2 == game_mem ) {
$2 = desk_mem
mode = "Desktop"
}
else {
$2 = game_mem
mode = "Game"
}
}
(ARGIND == 2) && ($1 == "Name[en_GB.UTF-8]") {
$2 = mode " Mode"
}
{ print }
' /boot/config.txt /home/pi/Desktop/GPUMode.desktop
Copy your files before trying it of course... 当然,请先复制文件,然后再尝试...
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.