Category: Linux OS

sudo add-apt-repository ppa:blaze/rtbth-dkms

sudo apt update

sudo apt install rtbth-dkms

sudo apt install blueman

Reboot.

Create user:

sudo adduser username

Ass user to sudo group:

sudo groupadd -aG sudo username

Delete user:

sudo deluser username

find . -maxdepth 1 -type f -name '*.pdf' -exec pdftoppm -jpeg {} {} \;

base64 -w 0 sourcefile.jpg > base64-code-saved-in-textfile.txt

There are several options at your disposal in the terminal:

$ sudo lsof -i -P -n | grep LISTEN
$ sudo netstat -tulpn | grep LISTEN
$ sudo lsof -i:22 # see a specific port such as 22
$ sudo nmap -sTU -O IP-address-Here

Open a terminal

$ vim ~/.profile

Add this line at the end of the file (press the ‘i’ key of your keyboard in vim to be in insert mode):

export PATH=$PATH:/your/path

Escape the insert mode, then save and quit ( :w and :q).

$ source ~/.profile

Restart your computer.

There are three useful command to find a file from the terminal in a linux system.

$ find /path/ -iname filename

$ locate -i filename

or just

$ locate filename

and you have grep

$ grep -r -i “searchterm” /path/to/search

-r make the search recursive and -i make it case insensitive.

To locate a program:

$ whereis programName