ubuntu.common #7 shutdown timer

116down voteaccepted

Scheduling a shutdown

To shutdown run the command:

sudo shutdown -P +60

That will wait 60 mins before starting the shutdown sequence.

You could do:

sudo shutdown -P 1:00

to shutdown at 1 AM and

sudo shutdown -P now

to shutdown now.

A message is broadcast to all terminals to warn about the shutdown.

Cancel a pending shutdown

After, starting a shutdown, if the time argument is not "+0" or "now", you can use:

sudo shutdown -c 

to cancel the scheduled shutdown.

python #1 pyautogui auto nhan qua han gio Dauhiep

#phan thuong han gio : 776,273 =>717,512
#10 15 20
import time
import pyautogui
def nhanthuong(second):
time.sleep(second)
pyautogui.click(button='left' , x = 776, y = 273)
time.sleep(2)
pyautogui.click(button='left' , x = 717, y = 512)
time.sleep(2)
pyautogui.click(button='left' , x = 717, y = 512)

nhanthuong(5)

Ubuntu.common #5 installing [tar.gz]or [tar.bz2]

filename.tar.gz   

tar xzvf file.tar.gz

finename.tar.bz2

tar xjvf file.tar.bz2

Ubuntu.common #4 recording system audio [audacity][audio-recorder]

alternative 1: audacity
1, sudo apt-get pavucontrol
2, sudo apt-get audacity

alternative 2: audio-recorder 

1,   sudo add-apt-repository ppa:audio-recorder/ppa
2,   sudo apt-get update && sudo apt-get install audio-recorder

#3 Ubuntu.common Install Appimage

1, go to that appimage folder and open in Terminal

2,

Making it executable

chmod a+x exampleName.AppImage

3, Executing it

./exampleName.AppImage

Ubuntu.common #2 download youtube video

install with root user
apt-get install youtube-dl
command:
youtube-dl  https://www.youtube.com/watch?v=bUQGVkBJY6s
download folder:
it should be  in home directory

Ubuntu.common #1 [recording your voice]

1, open terminal Ctrl + Alt + T
2,run the command:

arecord filename.wav

3, Crtl + C           to stop recording
4,the file should be in your home directory