power off from terminal

script is not perfect and may need your customization. It was written so you can end programs and power off your system from terminal

requrements:xvkbd ~6mb
code (add programs running on your system):

(ps ax | grep -v grep | grep transmission) #check if transmission is running if [ "$?" -eq 0 ]; then b=$(xwininfo -name Transmission | grep Window\ id:\ | awk '{print $4}') #get programs window id xvkbd -xsendevent -window $b -text "\Cq" #send keystroke to quit program fi sleep 1 #set firefox title to normal firefox about:blank sleep 1 (ps ax | grep -v grep | grep gnumeric) if [ "$?" -eq 0 ]; then b=$(xwininfo -name Book1.gnumeric\ :\ Gnumeric | grep Window\ id:\ | awk '{print $4}') xvkbd -xsendevent -window $b -text "\Cq" fi (ps ax | grep -v grep | grep nicotine) if [ "$?" -eq 0 ]; then b=$(xwininfo -name Nicotine+\ 1.2.9 | grep Window\ id:\ | awk '{print $4}') xvkbd -xsendevent -window $b -text "\Cq" fi sleep 1 (ps ax | grep -v grep | grep firefox) if [ "$?" -eq 0 ]; then echo firefox running, now trying to end #(using different character c) c=$(xwininfo -name Mozilla\ Firefox | grep Window\ id:\ | awk '{print $4}') xvkbd -xsendevent -window $c -text "\Cw"; sleep 1 xvkbd -xsendevent -window $c -text "\Cq"; fi df xvkbd -xsendevent -window $c -text "\Av"; (ps ax | grep -v grep | grep linuxdcpp) if [ "$?" -eq 0 ]; then b=$(xwininfo -name LinuxDC++ | grep Window\ id:\ | awk '{print $4}') xvkbd -xsendevent -window $b -text "\Cq" fi (ps ax | grep -v grep | grep vlc) if [ "$?" -eq 0 ]; then b=$(xwininfo -name VLC\ media\ player | grep Window\ id:\ | awk '{print $4}') xvkbd -xsendevent -window $b -text "\Cq" fi #send once again commands to firefox in case it wasnt running xvkbd -xsendevent -window $c -text "\Cw"; xvkbd -xsendevent -window $c -text "\Cq"; (ps ax | grep -v grep | grep transmission) if [ "$?" -eq 1 ]; then echo transmission now off, poweroff? #last resort to end firefox killall firefox sudo shutdown -P now fi

article will be updated as donation recieved

Low disk space notifications

linux low disk space notifications

Pre-requisite

In order for the pop-up message to appear, you would need to install “libnotify-bin”.

Code:

sudo apt-get install libnotify-bin

Script

The script will check the free disk space in “/dev/sda1″. It will show a pop-up message for 30 seconds when the free space is below 100MB. If the free space is below 50MB, it will show a pop-up message for 5 minutes. You should modify these parameters to your own requirement.

Copy and paste the script below to a file called “checklowdisk”.

Code:

#!/bin/sh

DISKSPACE=`df | grep "/dev/sda1" | awk '{ print $4 }'`

if [ "$DISKSPACE" -lt "51200" ] ; then
/usr/bin/notify-send -u critical -t 300000 \
'Check low disk' '/dev/sda1 is less than 50MB.'
exit
fi

if [ "$DISKSPACE" -lt "102400" ] ; then
/usr/bin/notify-send -u normal -t 30000 \
'Check low disk' '/dev/sda1 is less than 100MB.'
fi

Setting up the script

Make the script executable:

Code:

chmod +x checklowdisk

Change file ownership to root:

Code:

sudo chown root:root checklowdisk

Move file to “/usr/bin”:

Code:

sudo mv checklowdisk /usr/bin/

Set-up crontab

I chose to run the script hourly using crontab.

Edit crontab:

Code:

crontab -e

Add this line in the editor:

Code:

00 * * * * env DISPLAY=:0 /usr/bin/checklowdisk

Save and close the editor. The crontab is now configured, and the script will run at the hour.
thanx:Chewearn

to free up disk space more effectively click here