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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Bash scripts encryption and passphrase-protection
This function will encrypt a bash script and will only execute it after providing the passphrase. Requires mcrypt to be installed on the system.

ssh autocomplete based on ~/.ssh/config
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Turn shell tracing and verbosity (set -xv) on/off with 1 command!
Turn shell tracing and verbosity (set -xv) on/off in any Bourne-type shell If either -x or -v is set, the function turns them both off. If neither is on, both are turned on.

parrallel execution of a command on remote hosts by ssh or rsh or ...
parrallel execution of a command on remote host by ssh or rsh or ... very useful for cluster management (software update)

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Convert seconds to [DD:][HH:]MM:SS
Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

Select rectangular screen area
Hold 'Ctrl' + 'Alt' key while selecting rectangular text area of the screen with left mouse button. Should work in any terminal screen (xterm, konsole, ...) under X, if not then try with 'Ctrl' + 'Shift' + 'Alt' or two-combination of these.

Get your outgoing IP address
should be very consistent cause it's google :-)

Convert seconds to [DD:][HH:]MM:SS
Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

Find files containing string and open in vim
I often use "vim -p" to open in tabs rather than buffers.

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