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1500 questions
88
votes
7 answers

How to enable HiDPI support on Zoom.us linux client?

Screen elements are too small to click or read on my 4K laptop screen. How do I make it obey Gnome scaling, which is set to 200%? I'm on Fedora 29, but this should be the same issue on Ubuntu 18.04 LTS This issue also affects macbook retina display…
Ray Foss
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88
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2 answers

Why is the most powerful user on a Unix/Linux system called “root?”

Somewhat inspired by this other question on the use of the term “Super User”, why the heck is the most powerful user on a Unix/Linux system called root? Why not admin, sysop, base, king or something similar? When I read the term root all I think of…
Giacomo1968
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88
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4 answers

bash watch command with colors preserved

From man watch: Non-printing characters are stripped from program output. Use "cat -v" as part of the command pipeline if you want to see them. So how do I use cat -v if I want to see the colored output from: watch ls -al --color
Paweł Gościcki
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88
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3 answers

How to use 'sed' with piping

I want to replace a string outputted from grep, I have: $ npm info webpack | grep version it outputs me $ version: '2.1.0-beta.12', but I want to have: $ 2.1.0-beta.12 So I think I might achieve that using sed and replace unnecessary substrings.…
Oskar Szura
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88
votes
2 answers

What's the difference between stereo and hands free?

Every time I connect a bluetooth headset it shows up as 2 things on sound playback devices. I can choose bluedio stereo or bluedio hands free. What is that? What's the difference? I often see the stereo part to be unstable though.
user4951
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88
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3 answers

scp copy has error "ambiguous target"

I try to copy files from a linux (ubuntu) machine to an external hard drive mounted on a mac but got an error message : scp: ambiguous target What I did is, I'm on a mac, ssh to the linux machine where files are. Then use the following command…
bob
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87
votes
8 answers

What are the differences of watching a 1080p and a 720p version of the same media on a 720p screen?

Say I have 1280x720 pixels on my screen and the current resolution is set to 1280x720 as well. What are the differences between the 1080p version and the 720p version of the same media? Is it noticeable to an end user (a non-video expert or…
Varaquilex
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87
votes
5 answers

Removing dead thunderflies stuck inside an LCD monitor

This summer my flat was "attacked" by hundreds of tiny thunderflies, some of which managed to get behind the screen of my LCD. A few of the cursed creatures went and died right in the middle of the display:  And yes, this is real. Imagine my…
Mike Weller
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87
votes
12 answers

What's an efficient way to change my 200+ account passwords?

I have a lot of online accounts, web services, and so on -- personal as well as business -- so obviously(?) I use a password manager to handle them all. Specifically I use Lastpass but my question applies to any and all: Given the Heartbleed problem…
Torben Gundtofte-Bruun
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87
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5 answers

Can I use an excel formula to extract the link location of a hyperlink in a cell?

I have a spreadsheet with a large number of cells containing hyperlinks with display text different than the hyperlink location ie: cell location: A1 display text = "Site Info" hyperlink location = "http://www.mylocation.com" Is there an excel…
Gigamosh57
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87
votes
6 answers

How to remove items from the right click (context) menu in Windows?

The right click (context) menu is minimal and clean on a fresh installation of Windows. Install a bunch of applications and soon the context menu is loaded with all kinds of opening options from various applications. How do I remove items from the…
Ashwin Nanjappa
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87
votes
6 answers

Using robocopy and excluding multiple directories

I'm trying to copy some directories from a server before I restore from backup (my latest backup was corrupt, so I have to use an older one :( ). I'm in the Windows Recovery Environment and have access to the server's file system G:\ and my backup…
GorrillaMcD
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87
votes
9 answers

How can I change the input keyboard layout while in the console?

I need to change the layout of the keyboard while working in the console on Linux. I need to set up English layout as the default for the console. How can I do it?
J.Olufsen
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87
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6 answers

Delete files with regular expression

I Tried to delete files that starts with A and ends with 2 numbers but It doesn't do a thing. What I tried: rm ^A*[0..9]2$ Where am I wrong?
gdoron
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87
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3 answers

downloading file using scp command

I have a centos server lets say with ip: 1.2.3.4. I want to download a file from 1.2.3.4 at path /root/pc/filename.rar to my localhost host (current pc). What command I need to download that file? I am trying like this but its not working scp…
coure2011
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