I changed the brightness of my machine by editing the /etc/rc.local file and adding this line echo 10 > /sys/class/backlight/nv_backlight/brightness before exit 0.
After reboot I can see that it works fine. The problem is, it's so dark that I can't see anything. The screen is completely black. I tried running a live USB to edit the file but I have no write permissions.
Any ideas on how to resolve this?
I just installed lamp with tasksel and it works. But
/var/www I can create files only with sudo from terminal, I
don't know why. In another Ubuntu installation I didn't have such problem.index.php and I can't even save it.That's the error I get from Sublime Text:
Unable to save /var/www/index.php
Error: unable to create tmp file in /var/www
And that's from Geany:
Error opening file '/var/www/index.php': Permission denied
The file on disk may now be truncated!
Can anyone explain me with fairly simple words and not too technical concepts what exactly is GRUB, what is its primary usage and how to use it efficiently for a dual boot Windows/Ubuntu installation?
I have already read a couple of resources but I am still confused.
I just don't know if it's possible and how to cd for example in a dir that is not named with latin characters.
Example: $ cd άλφα or $ cd альфа
Update: In a terminal it is ok, but in a CLI environment not.
I know what the purpose of the update command is, and I was just wondering if i must use it before any package installation I perform. What if I have not update for too long and install some critical packages? Also, is there any occasion that there is no need to do that?