I am a new Linux bash shell command line user. How can I view a text file using command line on a Linux or Unix-like operating systems? How can I view (open) binary files such as PDF or images on a Linux or Unix like system from command line?
You can use any one of the following command to view a text file or any other files such as PDF, doc, image, video, music/mp3 and more.
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- cat command
- less command
- more command
- gnome-open command or xdg-open command (generic version) or kde-open command (kde version) - Linux gnome/kde desktop command to open any file.
- open command - OS X specific command to open any file.
View a text file called foo.txt on a Linux or Unix-like systems
Open the Terminal application and type the following command to view a text file called foo.txt using cat command:
nameserver 220.127.116.11 nameserver 18.104.22.168
You can also use more or less command as follows:
less filename more filename-here
gnome-open: Open files and directories/urls
The gnome-open command opens a file (or a directory or URL), just as if you had double-clicked the file's icon. The syntax is:
gnome-open file.pdf gnome-open sai-ram-bhjan.mp3 gnome-open mars-video.mp4 gnome-open http://www.cyberciti.biz/
See our faq "Open Gnome Nautilus File Manager For The Current Linux / Unix Command Line" for more information.
If you are using KDE desktop try kde-open command as follows:
kde-open file.pdf kde-open sai-ram-bhjan.mp3 kde-open mars-video.mp4 kde-open http://www.cyberciti.biz/
Another option is to try out xdg-open command on Linux and Unix desktop:
xdg-open file.pdf xdg-open sai-ram-bhjan.mp3 xdg-open mars-video.mp4 xdg-open http://www.cyberciti.biz/
If you are using OS X Unix try open command as follows:
open file.pdf open sai-ram-bhjan.mp3 open mars-video.mp4 open http://www.cyberciti.biz/