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[Translated] 20180512 How To Check Laptop Battery Status In Terminal In Linux.md
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How To Check Laptop Battery Status In Terminal In Linux
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======
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Finding your Laptop battery status in GUI mode is easy. You could easily tell the battery level by hovering the mouse pointer over the battery indicator icon in the task bar. But, how about from the command line? Not everyone know this. The other day a friend of mine asked how to check his Laptop battery level from Terminal in his Ubuntu desktop – hence this post. Here I have included three simple methods which will help you to check Laptop battery status in Terminal in any Linux distribution.
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### Check Laptop Battery Status In Terminal In Linux
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We can find the Laptop battery status from command line in three methods.
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##### Method 1 – Using “Upower” command
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The **Upower** command comes preinstalled with most Linux distributions. To display the battery status using Upower, open up the Terminal and run:
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```
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$ upower -i /org/freedesktop/UPower/devices/battery_BAT0
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```
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**Sample output:**
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```
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native-path: BAT0
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vendor: Samsung SDI
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model: DELL 7XFJJA2
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serial: 4448
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power supply: yes
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updated: Sat 12 May 2018 06:48:48 PM IST (41 seconds ago)
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has history: yes
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has statistics: yes
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battery
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present: yes
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rechargeable: yes
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state: charging
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warning-level: none
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energy: 43.3011 Wh
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energy-empty: 0 Wh
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energy-full: 44.5443 Wh
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energy-full-design: 48.84 Wh
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energy-rate: 9.8679 W
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voltage: 12.548 V
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time to full: 7.6 minutes
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percentage: 97%
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capacity: 91.2045%
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technology: lithium-ion
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icon-name: 'battery-full-charging-symbolic'
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History (charge):
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1526131128 97.000 charging
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History (rate):
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1526131128 9.868 charging
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```
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As you see above, my battery is in charging mode now and the battery level is 97%.
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If the above command doesn’t work for any reason, try the following command instead:
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```
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$ upower -i `upower -e | grep 'BAT'`
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```
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**Sample output:**
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```
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native-path: BAT0
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vendor: Samsung SDI
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model: DELL 7XFJJA2
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serial: 4448
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power supply: yes
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updated: Sat 12 May 2018 06:50:49 PM IST (22 seconds ago)
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has history: yes
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has statistics: yes
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battery
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present: yes
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rechargeable: yes
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state: charging
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warning-level: none
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energy: 43.6119 Wh
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energy-empty: 0 Wh
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energy-full: 44.5443 Wh
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energy-full-design: 48.84 Wh
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energy-rate: 8.88 W
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voltage: 12.552 V
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time to full: 6.3 minutes
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percentage: 97%
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capacity: 91.2045%
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technology: lithium-ion
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icon-name: 'battery-full-charging-symbolic'
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History (rate):
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1526131249 8.880 charging
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```
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Upower not just display the battery status, but also the complete details of the installed battery such as model, vendor name, serial no, state, voltage etc.
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However, you can only display the status of the battery by with combination of upower and [**grep**][1] commands as shown below.
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```
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$ upower -i $(upower -e | grep BAT) | grep --color=never -E "state|to\ full|to\ empty|percentage"
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```
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**Sample output:**
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```
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state: fully-charged
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percentage: 100%
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```
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![][3]
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As you see in the above output, my Laptop battery has been fully charged.
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For more details, refer man pages.
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```
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$ man upower
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```
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##### Method 2 – Using “acpi” command
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The **acpi** command shows battery status and other ACPI information in your Linux distribution.
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You might need to install **acpi** command in some Linux distributions.
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To install acpi on Debian, Ubuntu and its derivatives:
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```
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$ sudo apt-get install acpi
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```
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On RHEL, CentOS, Fedora:
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```
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$ sudo yum install acpi
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```
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Or,
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```
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$ sudo dnf install acpi
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```
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On Arch Linux and its derivatives:
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```
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$ sudo pacman -S acpi
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```
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Once acpi installed, run the following command:
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```
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$ acpi -V
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```
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**Note:** Here, “V” is capital letter.
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**Sample output:**
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```
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Battery 0: Charging, 99%, 00:02:09 until charged
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Battery 0: design capacity 4400 mAh, last full capacity 4013 mAh = 91%
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Battery 1: Discharging, 0%, rate information unavailable
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Adapter 0: on-line
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Thermal 0: ok, 77.5 degrees C
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Thermal 0: trip point 0 switches to mode critical at temperature 84.0 degrees C
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Cooling 0: Processor 0 of 3
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Cooling 1: Processor 0 of 3
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Cooling 2: LCD 0 of 15
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Cooling 3: Processor 0 of 3
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Cooling 4: Processor 0 of 3
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Cooling 5: intel_powerclamp no state information available
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Cooling 6: x86_pkg_temp no state information available
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```
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Let us only check the state of the charge of battery. To do so, run:
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```
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$ acpi
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```
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**Sample output:**
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```
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Battery 0: Charging, 99%, 00:01:41 until charged
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Battery 1: Discharging, 0%, rate information unavailable
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```
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Let us check the battery temperature:
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```
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$ acpi -t
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```
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**Sample output:**
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```
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Thermal 0: ok, 63.5 degrees C
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```
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Let us view the above output in Fahrenheit:
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```
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$ acpi -t -f
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```
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**Sample output:**
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```
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Thermal 0: ok, 144.5 degrees F
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```
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Want to know whether the AC power is connected or not? Run:
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```
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$ acpi -a
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```
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**Sample output:**
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```
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Adapter 0: on-line
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```
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If the AC power is not available, you would the see the following instead:
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```
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Adapter 0: off-line
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```
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For more details, check the man pages.
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```
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$ man acpi
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```
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##### Method 3: Using “Batstat” Program
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The **batstat** is a small ncurses-based CLI utility to display your Laptop battery status in Unix-like systems. It will display the following details:
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* Current battery level
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* Current Energy
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* Full charge energy
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* Time elapsed from the start of the program, without tracking the sleep time of the machine.
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* Battery level history
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Installing batstat is a piece of cake. Git clone the latest version using command:
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```
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$ git clone https://github.com/Juve45/batstat.git
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```
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The above command will pull the latest batstat version and save it’s contents in a folder named “batstat”.
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CD to batstat/bin/ directory:
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```
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$ cd batstat/bin/
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```
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Copy “batstat” binary file to your PATH, for example /usr/local/bin/.
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```
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$ sudo cp batstat /usr/local/bin/
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```
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Make it executable using command:
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```
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$ sudo chmod +x /usr/local/bin/batstat
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```
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Finally, run the following command to view your battery status.
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```
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$ batstat
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```
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Sample output:
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![][4]
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As you see in the above screenshot, my battery is in charging mode.
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This utility has some limitations though. As of writing this guide, batstat will support only one battery. And, it gathers information only from this folder – **“/sys/class/power_supply/”**. If your machine contains the battery information on a different folder, this program will not work.
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For more details, check batstat github page.
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And, that’s all for today folks. There might be many commands and programs out there to check the laptop battery status in Terminal in Linux. As far as I know, the above given methods have worked just fine as expected. If you know some other commands to find out the battery status, let me know in the comment section below. I will update commands in the article if they works.
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And, that’s all for now. More good stuffs to come. Stay tuned!
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Cheers!
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--------------------------------------------------------------------------------
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via: https://www.ostechnix.com/how-to-check-laptop-battery-status-in-terminal-in-linux/
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作者：[SK][a]
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选题：[lujun9972](https://github.com/lujun9972)
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]:https://www.ostechnix.com/author/sk/
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[1]:https://www.ostechnix.com/the-grep-command-tutorial-with-examples-for-beginners/
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[2]:data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
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[3]:http://www.ostechnix.com/wp-content/uploads/2016/12/sk@sk_006-1.png
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[4]:http://www.ostechnix.com/wp-content/uploads/2016/12/batstat-1.png
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@ -0,0 +1,310 @@
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如何在 Linux 终端下检查笔记本电池状态
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======
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在图形界面下查看你的笔记本电池状态是很容易的，只需将鼠标指向任务栏中的电池图标上，你便可以很容易地知道电池的电量。但如果我们想要从命令行中获得这些信息呢？并不是所有人都知道如何做到这点。前几天我的一个朋友询问我如何从他的 Ubuntu 系统里，在终端中查看他的笔记本电池的电量。这便是我写这篇文章的起因。在本文中我概括了三种简单的方法来让你在任何 Linux 发行版本中从终端查看笔记本电池的状态。
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### 在终端下检查笔记本电池状态
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我们可以使用下面的三种方法来从命令行中查找到笔记本电池状态。
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##### 方法一 – 使用 “Upower” 命令
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**Upower** 命令预装在大多数的 Linux 发行版本中。为了使用 `upower` 命令来展示电池的状态，打开终端并运行如下命令：
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```
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$ upower -i /org/freedesktop/UPower/devices/battery_BAT0
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```
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**示例输出：**
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```
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native-path: BAT0
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vendor: Samsung SDI
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model: DELL 7XFJJA2
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serial: 4448
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power supply: yes
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updated: Sat 12 May 2018 06:48:48 PM IST (41 seconds ago)
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has history: yes
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has statistics: yes
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battery
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present: yes
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rechargeable: yes
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state: charging
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warning-level: none
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energy: 43.3011 Wh
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energy-empty: 0 Wh
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energy-full: 44.5443 Wh
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energy-full-design: 48.84 Wh
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energy-rate: 9.8679 W
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voltage: 12.548 V
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time to full: 7.6 minutes
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percentage: 97%
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capacity: 91.2045%
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technology: lithium-ion
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icon-name: 'battery-full-charging-symbolic'
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History (charge):
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1526131128 97.000 charging
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History (rate):
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1526131128 9.868 charging
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```
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正如你所看到的那样，我的电池正处于充电状态，并且它的电量百分比是 97%。
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假如上面的命令因为某些未知原因不起作用，可以尝试使用下面的命令：
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```
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$ upower -i `upower -e | grep 'BAT'`
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```
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**示例输出：**
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```
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native-path: BAT0
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vendor: Samsung SDI
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model: DELL 7XFJJA2
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serial: 4448
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power supply: yes
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updated: Sat 12 May 2018 06:50:49 PM IST (22 seconds ago)
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has history: yes
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has statistics: yes
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battery
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present: yes
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rechargeable: yes
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state: charging
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warning-level: none
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energy: 43.6119 Wh
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energy-empty: 0 Wh
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energy-full: 44.5443 Wh
|
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energy-full-design: 48.84 Wh
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energy-rate: 8.88 W
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voltage: 12.552 V
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time to full: 6.3 minutes
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percentage: 97%
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capacity: 91.2045%
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technology: lithium-ion
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icon-name: 'battery-full-charging-symbolic'
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History (rate):
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1526131249 8.880 charging
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```
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Upower 不仅可以显示出电池的状态，它还可以显示出已安装电池的其他完整信息，例如
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电池型号，供应商名称，电池的序列号，电池的状态，电池的电压等信息。
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当然，如果你只想显示电池的状态，你可以可以结合使用 `upower` 命令和[**grep**][1] 命令，具体命令如下：
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```
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$ upower -i $(upower -e | grep BAT) | grep --color=never -E "state|to\ full|to\ empty|percentage"
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```
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**示例输出：**
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```
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state: fully-charged
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percentage: 100%
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```
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![][3]
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从上面的输出中可以看到我的笔记本电池已经完全充满了。
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想知晓更多的细节，可以参看 man 页：
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```
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$ man upower
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```
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##### 方法二 – 使用 “acpi” 命令
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**acpi** 命令可以用来显示你的 Linux 发行版本中电池的状态以及其他 ACPI 信息。
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|
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在某些 Linux 发行版本中，你可能需要安装 **acpi** 命令。
|
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|
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要在 Debian, Ubuntu 及其衍生版本中安装它，可以使用如下命令：
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```
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$ sudo apt-get install acpi
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```
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在 RHEL, CentOS, Fedora 等系统中使用：
|
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```
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$ sudo yum install acpi
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```
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或者使用如下命令：
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```
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$ sudo dnf install acpi
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```
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在 Arch Linux 及其衍生版本中使用：
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```
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$ sudo pacman -S acpi
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```
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一旦 `acpi` 安装好后，运行下面的命令：
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```
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$ acpi -V
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```
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**注意:** 在上面的命令中， “V” 是大写字母。
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**示例输出：**
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```
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Battery 0: Charging, 99%, 00:02:09 until charged
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Battery 0: design capacity 4400 mAh, last full capacity 4013 mAh = 91%
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Battery 1: Discharging, 0%, rate information unavailable
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Adapter 0: on-line
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Thermal 0: ok, 77.5 degrees C
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Thermal 0: trip point 0 switches to mode critical at temperature 84.0 degrees C
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Cooling 0: Processor 0 of 3
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Cooling 1: Processor 0 of 3
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Cooling 2: LCD 0 of 15
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Cooling 3: Processor 0 of 3
|
||||
Cooling 4: Processor 0 of 3
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||||
Cooling 5: intel_powerclamp no state information available
|
||||
Cooling 6: x86_pkg_temp no state information available
|
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|
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```
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首先让我们来检查电池的电量，可以运行：
|
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```
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$ acpi
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||||
|
||||
```
|
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|
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**示例输出：**
|
||||
```
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Battery 0: Charging, 99%, 00:01:41 until charged
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||||
Battery 1: Discharging, 0%, rate information unavailable
|
||||
|
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```
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下面，让我们来查看电池的温度：
|
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```
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$ acpi -t
|
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|
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```
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**示例输出：**
|
||||
```
|
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Thermal 0: ok, 63.5 degrees C
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||||
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||||
```
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||||
|
||||
如果需要将温度以华氏温标显示，可以使用：
|
||||
```
|
||||
$ acpi -t -f
|
||||
|
||||
```
|
||||
|
||||
**示例输出：**
|
||||
```
|
||||
Thermal 0: ok, 144.5 degrees F
|
||||
|
||||
```
|
||||
|
||||
如果想看看交流电适配器是否连接上了没有，可以运行：
|
||||
```
|
||||
$ acpi -a
|
||||
|
||||
```
|
||||
|
||||
**示例输出：**
|
||||
```
|
||||
Adapter 0: on-line
|
||||
|
||||
```
|
||||
|
||||
假如交流电适配器没有连接上，则你将看到如下的输出：
|
||||
```
|
||||
Adapter 0: off-line
|
||||
|
||||
```
|
||||
|
||||
想获取更多的信息，可以查看 man 页：
|
||||
```
|
||||
$ man acpi
|
||||
|
||||
```
|
||||
|
||||
##### 方法三 - 使用 “Batstat” 程序
|
||||
|
||||
**batstat** 是一个基于 ncurses 的命令行小工具，使用它可以在类 Unix 系统中展示笔记本电池状态。它可以展示如下具体信息：
|
||||
|
||||
* 当前电池电量
|
||||
* 当前电池所存能量
|
||||
* 充满时所存能量
|
||||
* 从程序启动开始经历的时间，它不会追踪记录机器休眠的时间
|
||||
* 电池电量消耗历史数据
|
||||
|
||||
安装 `batstat` 轻而易举。使用下面的命令来复刻(clone)该程序的最新版本：
|
||||
```
|
||||
$ git clone https://github.com/Juve45/batstat.git
|
||||
|
||||
```
|
||||
|
||||
上面的命令将拉取 batstat 的最新版本并将它的内容保存在一个名为 ”batstat“ 的文件夹中。
|
||||
|
||||
首先将目录切换到 `batstat/bin/` 中：
|
||||
```
|
||||
$ cd batstat/bin/
|
||||
|
||||
```
|
||||
|
||||
接着将 “batstat” 二进制文件复制到 PATH 环境变量中的某个目录中，例如 `/usr/local/bin/` 目录：
|
||||
```
|
||||
$ sudo cp batstat /usr/local/bin/
|
||||
|
||||
```
|
||||
|
||||
使用下面的命令来让它可被执行：
|
||||
```
|
||||
$ sudo chmod +x /usr/local/bin/batstat
|
||||
|
||||
```
|
||||
|
||||
最后，使用下面的命令来查看你的电池状态。
|
||||
```
|
||||
$ batstat
|
||||
|
||||
```
|
||||
|
||||
示例输出：
|
||||
|
||||
![][4]
|
||||
|
||||
从上面的截图中可以看到我的笔记本电池正处于充电状态。
|
||||
|
||||
这个小工具还有某些小的限制。在书写本文之时，batstat 仅支持显示一个电池的相关信息。而且它只从 **“/sys/class/power_supply/”** 目录搜集相关的信息。假如你的电池信息被存放在另外的目录中，则这个小工具就不会起作用了。
|
||||
|
||||
想知晓更多信息，可以查看 batstat 的 [github 主页][5]。
|
||||
|
||||
上面就是今天我要分享的所有内容。当然，可能还有很多其他的命令或者程序来从 Linux 终端检查笔记本的电池状态。据我所知，上面给出的命令都运行良好。假如你知道其他命令来查看电池的状态，请在下面的评论框中让我们知晓。假如你所给出的方法能够起作用，我将对我的这篇文章进行更新。
|
||||
|
||||
最后，上面便是今天的全部内容了。更多的优质内容敬请期待，敬请关注！
|
||||
|
||||
欢呼吧!
|
||||
|
||||
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
|
||||
via: https://www.ostechnix.com/how-to-check-laptop-battery-status-in-terminal-in-linux/
|
||||
|
||||
作者：[SK][a]
|
||||
选题：[lujun9972](https://github.com/lujun9972)
|
||||
译者：[FSSlc](https://github.com/FSSlc)
|
||||
校对：[校对者ID](https://github.com/校对者ID)
|
||||
|
||||
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
|
||||
|
||||
[a]:https://www.ostechnix.com/author/sk/
|
||||
[1]:https://www.ostechnix.com/the-grep-command-tutorial-with-examples-for-beginners/
|
||||
[2]:data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
|
||||
[3]:http://www.ostechnix.com/wp-content/uploads/2016/12/sk@sk_006-1.png
|
||||
[4]:http://www.ostechnix.com/wp-content/uploads/2016/12/batstat-1.png
|
||||
[5]:https://github.com/Juve45/batstat
|
||||
Loading…
Reference in New Issue
Block a user