Commands using acpi (12)

  • Check whether laptop is running on battery or cable

    The original proc file doesn't exist on my system. Show Sample Output


    4
    acpi -b
    dbbolton · 2010-06-10 23:23:16 0
  • print battery , thermal , and cooling info


    3
    acpi -tc
    hypnojazz · 2009-03-29 22:27:31 2
  • To get the CPU temperature continuously on the desktop

    There is no need for variables. I also added sleep to reduce cpu usage, however I didn't test it.


    3
    while :; do acpi -t | osd_cat -p bottom ; sleep 1; done &
    John_W · 2011-01-14 13:57:45 4
  • On Screen micro display for battery and CPU temperature. nifty, small, omnipresent

    My firefox overheats my cpu, sometimes above 90 degrees Celsius ( hence the name? ) To keep an eye on temperature, I put this command inside KAlarm ( a kind of cron) to be repeated every minute, for 5 seconds, color red ( default for osd_cat). Its pretty, ultra small, displays a micro 2 lines text on every desktop and over everything and do not steal focus or interrupt any task. I get the information passively, in the low profile bottom of the screen. Of course you can use it inside a terminal. Just do it: watch -n 60 'acpi -t | osd_cat -p bottom'


    2
    acpi -t | osd_cat -p bottom
    m33600 · 2009-10-23 05:22:01 0
  • Use acpi and notify-send to report current temperature every five minutes.

    works best in a shell script run at startup. It will ping localhost once and output to null, after it does that, acpi is called for temperature in fahrenheit and piped through to another loop that feeds notify-send for a tooltip. After waiting five minutes, it will start over. Show Sample Output


    2
    while ping -c 1 127.0.0.1 > /dev/null; do acpi -t -f | while read tem; do notify-send "$tem"; done; sleep 300; done
    c0de · 2011-07-02 06:47:25 2
  • Battery real life energy vs predicted remaining plotted

    This time I added a print to reemaining energy, every minute, time stamped. The example shown here is complete and point to large discrepancies as time passes, converging to accuracy near the end. Show Sample Output


    1
    echo start > battery.txt; watch -n 60 'date >> battery.txt ; acpi -b >> battery.txt'
    m33600 · 2009-10-19 05:28:15 0
  • Display laptop battery information


    1
    acpi -V
    vajorie · 2010-06-09 14:23:08 0
  • Check whether laptop is running on battery or cable


    1
    acpi -a
    wiburg · 2010-06-12 20:07:27 0
  • To get the CPU temperature continuously on the desktop

    No need for a colon, and one less semicolon too. Also untested.


    1
    while sleep 1; do acpi -t | osd_cat -p bottom; done &
    linuts · 2011-01-14 23:22:57 0
  • Check whether laptop is running on battery or cable

    This prints "Charging" or "Discharging". Obviously, this will indicate the status of the AC adapter. The awk part could be from 1-6. I removed the comma because it is useless when only looking at one element of the output array. See acpi(1) for more info.


    0
    acpi -b | sed 's/,//g' | awk '{print $3}'
    dbbolton · 2010-06-11 05:32:57 0
  • Print the current battery status


    -2
    acpi | cut -d '%' -f1 | cut -d ',' -f2
    sn0opy · 2009-02-16 13:36:01 3
  • Power Supply Triggered Alert

    Checks whether your power supply is still plugged in. If not it will trigger an alarm at maximum volume. Show Sample Output


    -3
    check(){ power=$(acpi -a) ; if [[ $power == *on-line* ]] ; then echo "supply is on"; else echo "somebody is steeling your laptop"; amixer -c0 set Master 100+ unmute ; mpg123 nuclear-alarm.mp3 ; fi } ;while true; do check ; sleep 2 ; done
    hoodie · 2011-12-10 13:42:52 0

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Get IPv4 of eth0 for use with scripts
Combines wgzhao's grep | awk | sed into one awk command.

Dump dvd from a different machine onto this one.
You can use this to directly dump from machine A (with dvd drive) to machine B (without dvd drive) . I used this to copy dvd using my friend's machine to my netbook. Above command is to be issued on machine B. Advantages : 1) No wasting time dumping first to machine A and then copying to Machine B. 2) You dont need to use space on Machine A. In fact, this will work even when Machine A doesnt have enough hdd space to dump the DVD. Use -C ssh option on slow networks (enables compression). you can replace "dd if=/dev/dvd" with any ripping command as long as it spews the iso to stdout.

recursive remove all htm files

Create a 5 MB blank file via a seek hole
Similar to the original, but is much faster since it only needs to write the last byte as zero. A diff on testfile and testfile.seek will return that they are the same.

copy from host1 to host2, through your host
This is a 'nocd' alternative :)

Generate list of words and their frequencies in a text file.

get a fresh commandlinefu-item each day as motd
Commandline-fu often has little tricks that I always forget. By adding this to the root-cron (sudo crontab -e) I lean a new trick every day.

pretend to be busy in office to enjoy a cup of coffee
Not as taxing on the CPU.

Remind yourself to leave in 15 minutes
If you spend most of your time in front of the terminal, leave is a useful reminder. Leave can have absolute form: leave 1555 reminds you to leave at 3:55PM

Find directory depth
Returns a the directory depth.

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