How to change screen resolution in Pepperming Linux
To change resolution in Peppermint Linux, click "Menu" in the bottom left part of taskbar and type "display" to find Display settings:
How to install CUPS-libraries in Fedora Linux
CUPS libraries are important for setting up ESC/POS printer in Fedora linux. You can install CUPS-libraries simply completing the command:
$ sudo dnf install cups-libs.i686
How to update YUM database in Fedora Linux
Before installing a softwater it's always good in update YUM database:
$ sudo yum makecache
How to upgrade Linux Lite from terminal
Sometimes while trying to install updates for Linux Lite you can meet an error: "Your computer is not connected to the internet", but you surely know that you are connected.
Don't panic, you can still upgrade your system using terminal. It's enough to run command:
$ sudo apt-get dist-upgrade
Then a script will start downloading upgrades and will install them automatically.
How to copy all files with same extension to flash-disk in command line in Linux
To copy files in linux we obvisously use command cp. In case we have a folder with files with same extension and want to copy all of them to connected flash-disk, we can use mask: *. For example, I have several .hccapx files and want to copy them on flash-disk:
$ cp *.hccapx /media/lovermann/DISK1/
Now, let's check, if files are copied:
How to create md5 hash from a string in Linux
Syntax for creating md5 hash in vert simple:
echo -n "mystring" | md5sum
If case you need to store created hash in a file, you can easily do it. For example we want to store md5 hash in "hash.md5" file:
$ echo -n "mystring" | md5sum >> hash.md5