Ubuntu Open File из терминала
xdg-open file-name
# xdg-open myPicture.png
HRZP
xdg-open file-name
# xdg-open myPicture.png#for short files
cat filename.txt
#for longer files
less filename.txt
#to edit files inside terminal open using vim or nano
#using vim
vim filename.txt
#using nano
nano filename.txtcat <path/your_file>