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Questions tagged [gui]

Use this tag if your question is about a program's Graphical User Interface (GUI) and how to use it.

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216 votes
3 answers
1.1m views

How to install Desktop Environments on CentOS 7?

I have recently installed CentOS 7 (Minimal Install without GUI) and now I want to install a GUI environment in it. How can I install Desktop Environments on previously installed CentOS7 without ...
αғsнιη's user avatar
  • 41.4k
64 votes
8 answers
279k views

Why can't I run GUI apps as root: "No protocol specified"?

I installed Debian onto my machine last night. Now, I don't understand why I can't run GUI apps from a terminal when running as root. For example: sudo -i glxgears Generates the following output: No ...
Octopus's user avatar
  • 2,509
30 votes
7 answers
36k views

Which GUI diff viewer would you recommend, with Copy-to-Left/Right functionality?

I've hardly ever used anything other than Meld. Can you recommend anything else? It would be extra nice if you give a reason for your recommendation (as a Comment). [note] I want an alternative ...
30 votes
11 answers
29k views

Lightest way to run GUI applications in Linux? [closed]

I realized I can use a window manager without a desktop environment and don't lose any functionality I care about. Applications still work fine, I can still arrange application windows as I please. ...
phunehehe's user avatar
  • 20.3k
31 votes
8 answers
130k views

How do I work with GUI tools over a remote server?

I have an Ubuntu server running on EC2 (which I didn't install myself, just picked up an AMI). So far I'm using putty to work with it, but I am wondering how to work on it with GUI tools (I'm not ...
ripper234's user avatar
  • 31.9k
16 votes
1 answer
6k views

What is the icon between settings and lock-screen in Gnome3?

I can't figure out what the icon between my settings and lock-screen icon in Gnome3 is supposed to do. It has two states, locked and unlocked, but it's not the lock screen. When I click it, it ...
adrin's user avatar
  • 317
16 votes
3 answers
13k views

Ranger - open_with without suspending

When I open a file into ranger with a GUI application not listed in the rifle.conf file (i.e. using the open_with command), the ranger terminal window gets "suspended" until I close the GUI app. For ...
tigerjack's user avatar
  • 381
2 votes
1 answer
2k views

A basic Bash script (to start a GUI program) works partially in cron

I use this script to restart Firefox overnight (to apply the package manager and addon updates): #!/bin/bash killall -s SIGTERM firefox; sleep 15 firefox -P "user" & firefox -P "...
user598527's user avatar
56 votes
1 answer
38k views

Show address bar w. full path in Nautilus instead of breadcrumbs bar

Unfortunately, Gnome's nautilus address bar is not showing the full path in its top bar. How can I change this behavior? I'm looking for a solution to display a editable text field instead, like in ...
mate64's user avatar
  • 1,469
35 votes
2 answers
4k views

How does the power button shut the computer down without root permission?

When I try to shutdown the computer from a command line or terminal I must have root privileges: amy@amy:~$ shutdown now shutdown: Need to be root and amy@amy:~$ halt halt: Need to be root but ...
amyassin's user avatar
  • 1,361
23 votes
6 answers
31k views

How do I merge two *.avi files into one

I have two *.avi files: sequence1.avi sequence2.avi How do I merge these two files using a command-line or GUI?
Stefan's user avatar
  • 25.4k
9 votes
2 answers
23k views

Run gui application on startup

I can run a script at boot by adding the following line to my crontab: @reboot perl /path/script That works fine. But the problem arises when I try to run a gui application such as gmail notify. It ...
john-jones's user avatar
  • 1,736
4 votes
4 answers
16k views

How to display a (zenity/GUI) dialog to the user after a root cron task has completed

I have a simple periodic cron task that must run as root. I want to use Zenity (or similar) to display a GUI informational dialog to user 1000 (or logged in user or all users) when the cron task ...
MountainX's user avatar
  • 18k
1 vote
1 answer
669 views

Do GUIs represent a type of separate shell?

When I install some Linux distros with a GUI, they come with the shells sh and Bash. The CLI let you operate the system through sh and Bash, but what about the GUI? Does the GUI let you operate the ...
Arcticooling's user avatar
48 votes
5 answers
49k views

Is it possible to retrieve the active window process/title in Gnome?

I need a solution for getting the current active (focused) window information on a Gnome 2 desktop. I'm mostly interested in the process running that window and window title. Is it possible? ...
Rogach's user avatar
  • 6,363
19 votes
12 answers
13k views

Is there a Linux graphics program that displays man commands in a browser?

Is there a Linux graphics program that displays man commands in a browser? I need a program that allows me to display all man commands in a browser, or in some graphics program, so that they can be ...
vfclists's user avatar
  • 7,551
16 votes
2 answers
8k views

Detach/reattach an application run on X over SSH?

I have a development server that I leave running all the time, and a development laptop that I turn off/on everyday. I have a GUI application on the server that I'd like to run over SSH -X, and I'd ...
LeeMobile's user avatar
  • 285
8 votes
5 answers
23k views

How to edit/resize an LVM partition graphically (with a GUI)?

I want to resize an LVM partition (specifically, I want to increase the root / mount and decrease the /home), because I am running low on disk space on one virtual partition.  Now people say LVM has ...
rugk's user avatar
  • 3,136
6 votes
1 answer
3k views

How can I utilize the whole terminal, like htop or emacs do?

I want to write a program that can "draw" in the terminal the same way as htop or emacs. By that I mean "get rid of the prompt and make the output dependent on the current size of the terminal". To ...
townhall's user avatar
4 votes
1 answer
614 views

How can I observer the desktop GUI interacting with the shell?

For example, if I change the sound volume by the ubuntu desktop widget, I think it will issue some commands to the shell or run a script. Is it possible to see what it runs?
user17's user avatar
  • 141
3 votes
2 answers
16k views

Xdotool using "DISPLAY=:0" not works in Crontab

I need to run shell script contains Xdotool codes in /home/z/Desktop/tempo/run.sh. I've tried many ways of DISPLAY=:0 but always not works. I've tried each of below codes, and not works: * * * * * ...
apasajja's user avatar
  • 1,917
3 votes
3 answers
2k views

Automating tasks on a website on a headless server

I want to automate a task which can only be done on a website (with prior login) on my debian server. There is no public API available, so I can't use one. Is there a way to do so? I thought about a ...
Leandros's user avatar
  • 712
2 votes
1 answer
1k views

How to load your own GUI app without the rest of the GUI in Linux?

Is there a way to load my own GUI app without the rest of the GUI in Linux? It's something like running Winamp only, and practically turning your PC into a music player.
J. Doe's user avatar
  • 123
1 vote
2 answers
894 views

name of binary vs. name in GUI

In icedove>preferences>attachments, for 'JEPG image' one can select 'Image Viewer' or 'Use other ...'. It turns out that 'Image Viewer' is actually '/usr/bin/eog' on my system. I only know that ...
Ray Andrews's user avatar
  • 2,455
1 vote
1 answer
521 views

How to connect to a xserver from my system-wide terminal?

I am currently trying to make an autonomous drone using the Robot Operating System (ROS). To do this, I have installed Raspbian Lite (Jessie) on a Rasperry Pi 3 and am currently using ROS Kinetic on ...
SDG's user avatar
  • 315
-2 votes
1 answer
321 views

Does an X client process always have one or more GUI window(s)?

Does an X client process always have one or more GUI window(s)? Conversely, if a process has one or more GUI window(s), is it an X client process? Does an X client never have a controlling terminal?...
Tim's user avatar
  • 102k
103 votes
10 answers
101k views

How do I split a flac with a cue?

I've got a full album flac and a cue file for it. How can I split this into a flac per track? I'm a KDE user, so I would prefer a KDE/Qt way. I would like to see command line and other GUI answers ...
xenoterracide's user avatar
41 votes
10 answers
177k views

How to resolve 'No protocol specified' for su user

I am trying to use an alternate user (non-admin) to execute graphical software on my system. This alternate user has been named and given a UID and GID to match a remote system user of the same name. ...
J Collins's user avatar
  • 1,155
33 votes
4 answers
115k views

Opening current directory from a terminal onto a file browser?

My current directory is buried deep in multiple subfolder layers from my home directory. If I want to open this directory in a gui-based file browser, I have to double click folder after folder to ...
Paul's user avatar
  • 9,513
32 votes
3 answers
108k views

Can I Remove GUI From Debian?

I just did my first install of any Linux OS, and I accidentally selected "Desktop GUI" in the install, but I want to build everything myself. Is there any way by which I can remove the GUI environment ...
OneChillDude's user avatar
25 votes
5 answers
19k views

How to soft kill gui applications via terminal?

Is there a way to close a GUI application in friendly "please quit yourself now" way, without graphical access to the applications window? For example, if Gnome/X display crashes to black, I'd like ...
jfk's user avatar
  • 252
16 votes
5 answers
22k views

Tools to visualize file size distributions [duplicate]

Possible Duplicate: How to understand what's taking up space? Are there any tools in Linux for graphically visualizing the distribution of file sizes under a given path? I am looking for ...
Amelio Vazquez-Reina's user avatar
14 votes
2 answers
32k views

VNC Server without X Window System

Will a VNC server work without X Server installed? I know vnc works with X Server, but what about without it?
anonman's user avatar
  • 145
13 votes
6 answers
7k views
+50

Choose which browser to open link in

I am using both Firefox and Google Chrome with multiple windows (profiles). When clicking a link in e.g. a terminal or another GUI app I'd like to choose which browser/window to load the URL in ...
Melle's user avatar
  • 241
11 votes
2 answers
15k views

How to run a GUI program as a different user (Debian)?

Using a terminal, I can change the running user with su and sudo — but how can I do that by clicking on an icon/shortcut on the desktop/start menu? If I have to be root to execute I will be asked ...
ipped's user avatar
  • 113
8 votes
2 answers
1k views

Is there a graphical pager?

Does someone know of a GUI application (X/GTK+/Qt/whatever) that can be used instead of less or more for viewing text, specifically one piped in from standard input? Ideally looking for something that ...
Guss's user avatar
  • 12.8k
8 votes
3 answers
18k views

What to do to run GUI Java app in chrooted environment?

In my case Java app is JDownloader. I prepared chroot environment as explained here: http:‍//www.0x61.com/forum/post5240333.html#p5240333  (broken link) Error running java in a chroot on Linux, and ...
greenoldman's user avatar
  • 6,226
8 votes
1 answer
148 views

sticking stickies to windows

I'm looking for a sticky notes/knotes/etc type program with one difference: I can stick a note on a window, rather than the desk top, and it will remain attached to the window. Basically, I want to ...
Brian Postow's user avatar
6 votes
2 answers
40k views

How to disable and enable GUI of debian 10

Hello I want to disable my GUI and enable it again (debian 10 buster) for testing purposes is it possible?
John Lloyd Gementiza's user avatar
6 votes
7 answers
30k views

Not able to initialize GUI for kali linux in wsl 2?

This error message is being displayed: TigerVNC Viewer 32-bit v1.10.80 Built on: 2020-06-15 22:33 Copyright (C) 1999-2020 TigerVNC Team and many others (see README.rst) See https://www.tigervnc.org ...
Karan Bakshi's user avatar
6 votes
2 answers
453 views

Degraded areas of some user interfaces, including pixellated or jagged fonts

For me the symptoms were first observed with PC-BSD 11.0-CURRENT. The first of my 2016 screenshots (below) is similar to the 2012 shot in Debian-related Fonts of some applications get confused so, ...
Graham Perrin's user avatar
5 votes
2 answers
1k views

Gnome shell VS Unity

Did I understand correct that the Gnome shell is the a shell written to allow GUI based operation, and that the Unity GUI is actually one of the interfaces that are based on the Gnome shell?
Arcticooling's user avatar
5 votes
1 answer
1k views

Where does "graphical shell" stand in the hierarchy of "windowing system, window manager, desktop environment"?

Today for the first time, I heard about "graphical shell" from that Unity of Ubuntu : Unity is a graphical shell for the GNOME desktop environment developed by Canonical Ltd. and Graphical ...
Tim's user avatar
  • 102k
5 votes
2 answers
5k views

Is there any way to launch gui application without gui?

I'm using Linux Mint MATE. I would like to launch a gui application without recognized by my eyes. I tried the following code which launches the application and moves it to another workspace with ...
ynn's user avatar
  • 870
5 votes
2 answers
6k views

How to create GUIs (such as menuconfig) with lxdialog

I try to generate a menuconfig by my own with the help of lxdialog (source: lxdialog). Unfortunately this is not so well documented as I wished for. Example: So what I did: I included these files (...
user3085931's user avatar
4 votes
1 answer
649 views

personal document management system

I'm looking for a personal document management system that would: track changes in documents in a configured directory tree save new files to a content repository (thus allowing of their versioning) ...
Marcin Cylke's user avatar
4 votes
1 answer
3k views

LibreOffice install language package from official dnf-repositories

If I check under tools > options > Language Settings > Languages > Language of > User interface: it only contains "Default - English (USA)" and "English (USA)", ...
JoKalliauer's user avatar
3 votes
1 answer
3k views

i3 - a hateful handful of font sizes for my desktop

Since I installed i3 on Arch Linux I noticed a too big font size (in what was the first thing I saw, the i3bar at the bottom), so I changed the font size in the .config/i3/config file (now the line ...
Enlico's user avatar
  • 1,656
3 votes
2 answers
44k views

stop/start gui on debian

I would like to start Debian without the GUI and then just type commands in to launch the desired programs (which are located on my local machine), eg $ chromium-browser & I already do a similar ...
mulllhausen's user avatar
  • 2,700
3 votes
1 answer
3k views

Preventing other GUI applications from stealing focus?

How can I prevent other applications from stealing focus from the active window? I have found solutions for other window managers, but nothing for "Metacity (Marco)" (the window manager of the MATE ...
Eleno's user avatar
  • 1,849