linux终端查看笔记本电池电量

系统archlinux，搜索电池相关的软件有下面这些

extra/xfce4-battery-plugin 1.0.5-4 (xfce4-goodies)
    A battery monitor plugin for the Xfce panel
community/acpi 1.7-1 [已安装]
    Client for battery, power, and thermal readings
community/cbatticon 1.5.0-1
    Lightweight and fast battery icon that sits in your system tray
community/ibam 0.5.2-8
    An intelligent battery monitor
community/osdbattery 1.4-6
    Displays battery information in the OSD style

我安装了acpi，直接终端使用acpi命令，显示剩余电量百分比和时间

也可以不用程序，直接查看文件，电池相关的目录为 /sys/class/power_supply/BAT1/     （旧的目录是 /proc/acpi/battery/BAT0/ ）

此目录里，capacity 是剩余百分比，还有其他文件，比如记录电量的，放电状态的等

参考