Skip to main content

A simple laptop battery monitor script

The script displays alert when the battery falls below 20% or charges up beyond 80% which should be the optimal range of its working.

The code is as below. Just copy and paste and save as any file name but preferably battery-notify.sh. The script can independent of what name it is given. Needs to have acpi (default install) and notify-send installed (sudo apt-get install notify-osd).


============================================

#!/bin/bash


# battery-notify v1.2 by JOnes


# It is a script to monitor battery and keep it between 20% to 80% the optimal battery working range. If the battery goe beyonds the set limit it gives pop-ups every 10 seconds. No sound warning as sound can easily be muted and ignored.
# Things that could be added : 1> The flexibilty of range. But it is not recommended  hence not implemented. 2> Notification in form of email or sms. 3> Sound / beep for critical state of battery.
# The script goes into background. To kill it at any time use : kill `pgrep battery-notify`


# check if "acpi" and "notify-send" is installed.



if [ ! `which acpi` ] ; then
echo -e "Install acpi  \nsudo apt-get install acpi"
exit 0
fi


if [ ! `which notify-send` ] ;then
echo -e "Install notify-send \nsudo apt-get install libnotify-bin"
exit 0
fi




v1=`echo $0 | sed 's/\.//' | sed 's|\/||' ` 


echo -e "The script goes into background. To kill it at any time use : kill \`pgrep $v1\`" 


{
while [ 1 ]
do
# this snippet extracts the battery status as percentage
aa=`acpi | cut -d"," -f2 | tr -d "% "`
# grep -c counts the no. of occurance of the text
bb1=`acpi | grep -c "Discharging"`
bb2=`acpi | grep -c "Charging"`
#echo $bb1 $bb2


# if discharging then
if [[ $bb1 > 0 ]] ; then
if [[ $aa < 20 ]] ; then 
 notify-send -t 100 "Battery Status: $aa%. Plug charger" 
fi
fi


# if charging then
if [[ $bb2 > 0 ]] ; then
if [[ $aa > 80 ]] ; then 
 notify-send -t 1000 "Battery Status: $aa%. Unplug charger." 
fi
fi


sleep 10
done


}&



============================================



Comments

Popular posts from this blog

Fastest way to send multiple drafts from gmail

People claim that the fastest way to send multiple email drafts is to use Gmail IMAP with email client like Outlook or Evolution or Thunderbird. But I have found this is not true. Because Thunderbird and Evolution etc. email clients treats the drafts as emails still to be edited. So it is not just simple select all and hit send. Each email draft has to be opened and sent separately. That is a lot of clicks and mouse movements, wasting precious time and energy. I have a better solution which involves minimum keystrokes and mouse usage. Efficiency booster technique for sending emails.
If someone is feeling adventurous and want to try it from the Gmail interface itself, here's how to do it in the fastest possible manner. It involves using the mouse once. Select the first draft. Gmail would open a new email box and put the cursor inside the box to write.Press TAB once to go the Send button.Press ENTER to send. Now Gmail sends it and the box is gone but the highlight goes to the last li…

LYRICS OF CHANDRABINDOO

___________________________________________________________________

SWEET HEART FROM AAR JAANI NAA(T-SERIES)
-- SWEETHEART --

Pratham college-er din ta
Aajo thik e mone poRey scene ta
Dada didi haath dhorey siNRi tei bose poRey
Aamar chokh ta ghorey bon bon bon bon

Sweetheart, I am seating alone
Sweetheart, for me there is none

DhoNk gile chole gelo pratham maas
Meye dekhlei feli deergho-shwash
DhoNk gile chole gelo pratham maas
Meye dekhlei othe nabhishwash
Meyera bheeshan smart poRey chhoto mini-skirt
Aamar e je sheet korey kon kon kon kon

Sweetheart, I am seating alone
Sweetheart, for me there is none

Taarporey kete gelo maas chaar
Fuse holo je kato future
Bandhura purse khule eke oke taake tole
Aamar pran ta korey chon mon chon mon

Sweetheart, I am seating alone
Sweetheart, for me there is none

Ekdin lawn theke beriye
Ek tanayaar dike taakiye
Hawt korey ki je holo magaj ta ghurey gelo
Taar kaaner saamne kori ghyan ghyan ghyan ghyan

Sweetheart, I am seating alone
Sweetheart, for me there is none

Taarpore cla…

How to join audio tracks smoothly in Audacity

Audio tracks can be mixed easily in full fledged video editors like kdenlive or Adobe Premiere but for mixing or joining audio they would not provide the amount of control that audio editors like Audacity provide. The example I am going to show today would demonstrate the range of tools in Audacity that allows us to control the waveform and to mold it to our desire.

Today I am going to take a small track like a small 1 min. clip of storm sound and make a long continuous sounding storm audio clip from it.

STEP 1 : Open file
Open the clip in Audacity.

STEP 2 : Removing unwanted audio portion
There is always unwanted sections of the audio that we have to discard. Select the portion of background noise or unwanted audio.


Press DELETE key.

STEP 3 : Duplicating the track
Now we make a copy of the entire waveform and paste it at the end of the track.

Select the SELECT tool (the one which looks like I). Then select the whole waveform and prss Ctrl+c. Now click approximately at the end of the…