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    Friday, October 30, 2020

    Linux How To Logout Via Command Prompt?

    Linux How To Logout Via Command Prompt?


    How To Logout Via Command Prompt?

    Posted: 30 Oct 2020 05:19 AM PDT

    SOLVED

    You can use "poweroff" in the terminal to shutdown the PC but is there a similar "logout" command? I'd like a command that takes me back to the DM login screen (like when you select "Log Out" from the menu) but I can't find anything.

    submitted by /u/Spire-Al
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    How can I learn compiling?

    Posted: 30 Oct 2020 10:59 AM PDT

    Sometimes I want to install a package and that packet might not be in the repositories, and AFAIK in that situation I have to compile it. Is there a tutorial video/article about it?

    submitted by /u/verbayer
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    View connections allowed by UFW?

    Posted: 30 Oct 2020 08:50 AM PDT

    I've begun setting up firewalls on all my computers after noticing a massive amount of port scans. I can view blocked connection with journalctl -k | grep -i ufw but is there a way to view connections that have been allowed through? I want to be sure that everything is fully secured.

    My current ufw config if that's any help:

    Status: active

    Logging: on (low)

    Default: deny (incoming), deny (outgoing), disabled (routed)

    New profiles: skip

    To Action From

    -- ------ ----

    465/tcp ALLOW OUT Anywhere

    993/tcp ALLOW OUT Anywhere

    53/tcp ALLOW OUT Anywhere

    80/tcp ALLOW OUT Anywhere

    443/tcp ALLOW OUT Anywhere

    192.168.1.0/24 8096/tcp ALLOW OUT Anywhere

    192.168.1.0/24 32400/tcp ALLOW OUT Anywhere

    80/udp ALLOW OUT Anywhere

    53/udp ALLOW OUT Anywhere

    192.168.1.0/24 2222/tcp ALLOW OUT Anywhere

    443/udp ALLOW OUT Anywhere

    192.168.1.0/24 9091/tcp ALLOW OUT Anywhere

    submitted by /u/SolidSnakeOil_
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    The Linux filesystem totally confuses me. What is the Linux equivalent of Windows's C: drive?

    Posted: 30 Oct 2020 09:45 AM PDT

    I want to get familiar with Linux but the filesystem is totally foreign. Where is my C drive? What are all the different folders? I'm so confused

    submitted by /u/MilesPrower1992
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    Laptop only boots with something plugged in?

    Posted: 30 Oct 2020 09:45 AM PDT

    Hi,

    Having a bit of a weird issue with my Ubuntu installation. It won't boot at all without something plugged in (This can be a USB stick, or the charger, but not headphones through the 3.5mm audio jack, type C headphones work though)

    If something isn't plugged in it takes me to a black screen which doesn't react to any kind of input. Once I'm on the login screen I can unplug things no problem and the laptop continues to work

    I'm running:

    Ubuntu Unity Remix 20.04LTS on an

    ASUS Zenbook UM431D

    submitted by /u/InParenthasis
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    Can’t login remotely, opened the port on my router

    Posted: 30 Oct 2020 08:25 AM PDT

    Help!

    Posted: 30 Oct 2020 07:21 AM PDT

    use pop os and I'm having two issues, 1: my graphics are freaking out when ever I drag a window around the screen or move it. I use the built in tiling window manager. 2: when I type any command in my terminal it can take up to 20 seconds to start. Any help on either of these issues would be greatly appreciated.

    Sorry for the garbage video

    https://youtu.be/d1aeJqjSDSo

    I press enter on the keyboard at the same time I start the video.

    submitted by /u/sessinnek
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    Fedora 33 automatic updates

    Posted: 30 Oct 2020 08:29 AM PDT

    Hello

    Everytime when i start up my laptop i have this habit to type "sudo dnf upgrade" but is it possible to get automatic system updates somehow? That would be a major improvement for me.

    submitted by /u/Matroesjkas
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    Dropbox is Causing Weird Issues with File Manager

    Posted: 30 Oct 2020 09:57 AM PDT

    I am using Kubuntu 20.4. When I create, delete or rename a file in a location, the changes are not reflected. I have to close out the file manager and reload it for the changes to show up. Also, when I download something, and I have the location already open in the file manager, the location does not show the downloaded file. It is only after I reload the file manager that it shows up. I started noticing this problem in Dolphin so I decided to try other file managers. I tried xfe, Krusader and SpaceFM and they all gave me the same problems. The problem sometimes went away only to resurface. Then I realized that when I am running the Dropbox daemon, I have the problem but when I shut it down, everything works as it should. I updated Dropbox but it did not fix the issue. I really do not want to contact Dropbox and was hoping that I could get some help here. I hate talking to tech support they never really help.

    submitted by /u/thealphagenius
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    Where does stuff get installed?

    Posted: 30 Oct 2020 02:16 AM PDT

    When installing something like this, where does it get installed? Is it "portable"? If not, how do I move it or uninstall it? And which files/folders can I delete now?

    tar -xzf ta-lib-0.4.0-src.tar.gz cd ta-lib/ ./configure --prefix=/usr make sudo make install 
    submitted by /u/lelease
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    Linux colour schemes - What does each of the 15 colours represent?

    Posted: 30 Oct 2020 09:04 AM PDT

    Hi,

    I was wondering if someone could tell me what each of the 15 colours is for (e.g. which one is for text, which one is for the background, etc). Thanks

    submitted by /u/706d6e75646573
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    Machine stuck on bootup screen

    Posted: 30 Oct 2020 01:42 PM PDT

    Machine stuck on bootup after installing updates

    I am running ubuntu 20.04 on my think server and it has stayed at this screen for 1+ hour since updating 6 small packages. Should I be concerned?

    submitted by /u/Gormenghast_Titus
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    grep - xxx is a directory

    Posted: 30 Oct 2020 02:22 AM PDT

    Hi,

    I have a simple question about grep.Why is it, that I can run ls | grep ^Do in my bash shell successfully:

    Documents Downloads 

    But when I run ls | grep ^Do in my zsh shell i get:

    grep: Documents: Is a directory grep: Downloads: Is a directory grep: Music: Is a directory grep: Pictures: Is a directory grep: Public: Is a directory grep: Templates: Is a directory grep: Videos: Is a directory 

    I checked my aliases but they are the same for my .bashrc and my .zshrc. (As you can in the Solution, i didn't check my aliases carefully enough)

    alias ls='ls --color=auto' alias grep='grep --color=auto' 

    How can I get zsh to display the same output as bash?

    Thanks!

    SOLUTION: It had to do with my ls alias. I was stupid enough to set alias ls='ls --color' instead of ls='ls --color=auto' in my .zshrc.

    --color adds escape sequences for the color. You can see this if you redirect the output (of ls --color) to a file.

    Credits to this post: https://unix.stackexchange.com/questions/259261/ls-grep-works-doesnt-work-with-ls-color

    submitted by /u/m4chei
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    Looking at 2 lines in .bash_history

    Posted: 30 Oct 2020 01:31 PM PDT

    I'm working with a compromised VM for practice. can anyone tell me what these lines would do? I couldn't find too much on the internet

    ``` sudo /bin/rm /bin/false sudo /bin/ln -s /bin/bash /bin/false

    ```

    submitted by /u/imnot970
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    Os reinstall

    Posted: 30 Oct 2020 07:19 AM PDT

    I realized that the iso file i used to install my system is corrupted do i need to reinstall the os with a secure one? If i must shoud i format all the partitions or formating / is enough?

    submitted by /u/cantchooseaname12
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    Debian Install Issues.

    Posted: 30 Oct 2020 09:11 AM PDT

    I used Rufus to create a USB stick w/ Debian. First when trying to install, the screen was all jacked up. Disabling CSM in BIOS fixed that. Now it says no Ethernet detected. I currently have windows 10 on one SSD, and I want to get Debian on a separate SSD. I logged back into windows to check out my device manager. I see the Realtek PCIe 2.5GbE Family Controller is disabled. When I enable it, I lose my connection. My modem is half way across the house, so I'm running off a wireless router right now.

    What do I do? I just want to get Debian installed on this second SSD.

    Gigabyte Aorus B550 motherboard with Realtek 8125B (2.5 GbE). I don't see that in the list of ethernet cards while trying to install.

    submitted by /u/CyanCobraXS
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    Where are programs that I build with qt creator located and how can I start them?

    Posted: 30 Oct 2020 08:07 AM PDT

    I builded a program in qt creator and I can't find it with krunner.

    submitted by /u/FreskoReddit
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    Issues Accessing a Linux Ubuntu share from a Surface Laptop

    Posted: 30 Oct 2020 11:27 AM PDT

    Fair warning, this may be technically an issue with either Windows 10 or a hardware problem.

    I have set up a shared folder on an Ubuntu desktop (the desktop is pretty old and 32 bit so I'm using Ubuntu 16.04, I believe). I have a Windows 10 laptop which I have successfully set up to access the shared folder. My wife recently purchased a Microsoft Surface which I would like to set up to access the share, as well, however no matter what I do, she gets an error message when she tries to click into the folder:

    "Windows cannot access \\[Computer name]\[Shared Folder Name1 & Name 2]. You do not have permission to access \\[Computer name]\[Shared Folder Name1 Name 2]. Contact your network administrator to request access"

    One of the things that concerns me is that there is an & in my folder name and where I've italicised the "N" above, what actually happens is that it deletes the & and replaces the next letter with an underlined version of the letter (but Reddit doesn't allow underlining, annoyingly).

    Both laptops are on the same version and same build of Windows 10 (I've double-checked this).

    Anybody have any advice? I'll happily answer any questions to try and make this easier. I've tried messing around with Samba settings, but since one laptop accesses fine and the other doesn't, I suspect the problem may be something specific to the Surface laptop.

    submitted by /u/iamafreeman
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    Sha1 dosent match

    Posted: 30 Oct 2020 06:43 AM PDT

    I just leaned about verifying you iso image before installing and i decided to check the Sha1 of the iso image that i downloaded and installed 5 days ago and it dosent match with what is on the website.

    Do i need to reinstall my os? How big of a threat is this?

    submitted by /u/cantchooseaname12
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    Problems making Oomox dark themes

    Posted: 30 Oct 2020 10:22 AM PDT

    I'm trying to make an numix based oomox dark theme. I have most of the colors I like, but around the text box and button is a white boarder that is the same as the text. I've tried materia doesn't have this problem, but I can't use gradients with it

    submitted by /u/crazzieme
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    Over 100k Files, How do I search via Terminal Simply for IDENTICAL character sequences in the Names?

    Posted: 30 Oct 2020 06:21 AM PDT

    NOTE: I don't know what the specific sequences either. They're quasi random and I don't want to tease them out. Like if the computer could make a list of the top 100 frequently occuring character sequences.

    Okay, I'm married several drives together, sorting a bunch of pics, probably a lot of near duplicates taken in sequence HOWEVER, they are slight differences between them so not identical at the byte level nor identical file names.

    MOST have some similarities. Some have a 3-5 characters in common somewhere in the title ie (bea-first or bea-second, zatax_aab and zatax_zir) however they are not in the same folder nor are these letters in the beginning just somewhere in the title as a lot of this was autogenerated. Otherwise I could do this in the GUI. So I might have a ton of files named like:

    7CebfK2SvSzFuwXhZANTAX_AAB4zAVfFDvKgpH4sdpWJauQyzkw5.jpg

    39wYEGXFD2vPcQT3YeD75bfwC87kF7mTEa5mge2S4h.jpg

    7XR9TjQGqwHEje5fZ82Ksgu2Jqc4d6TJSzfVMLDaMP.jpeg

    JRXu2Gb9E9TCxRWjzJSPWJFF4GBhzdzZANTAX_ZIRUE5zhqwBDsq.jpg

    What can I use on the command line when all I know is I'm looking for sequence of identical letters in the names. I don't even know what the specific sequences are.

    submitted by /u/StarchRunner
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    KDE Tip: Annotate documents with Okular

    Posted: 30 Oct 2020 02:25 AM PDT

    OBS keeps on recording the wrong audio channel. Have to use Pavucontrol to redirect it to record the desktop's audio not my mic. It works but I have to keep on setting it for every reboot of OBS. Any permanent solution?

    Posted: 29 Oct 2020 10:34 PM PDT

    I'm using Arch Linux and a Logitech H390 USB Headset. I'm also using PulseEffects for my output.

    OBS for some reason keeps redirecting its audio capture to Monitor of PulseEffects(mic) instead of Mointor of Logitech USB Headset Analog Stereo despite me setting desktop Audio to Monitor of Logitech USB Headset Analog Stereo.

    I can fix this using Pavucontrol and manually redirect the desktop audio capture to Logitech USB Headset Analog Stereo. However this keeps resetting back to PulseEffects(mic) on every reboot of OBS. Is there a more permanent solution?

    Help is gladly appreciated!

    submitted by /u/Fatal_Taco
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    Questions about /dev/video camera devices and Cheese

    Posted: 30 Oct 2020 09:22 AM PDT

    I've seen in some places a /dev/video folder, but I have no such folder. But I do have video0 and video1 special character files directly in /dev. I'm on Ubuntu 18, is this normal?

    Also when I do dmesg | grep -i "Camera" I don't get anything that seems like a device, I just see one line that says [ 3.369852] uvcvideo 1-1.6:1.0: Entity type for entity Camera 1 was not initialized! anyone know what that means?

    Lastly, is cheese still safe? I've only ever seen it on articles discussing ubuntu 10.10 (including the one on the official ubuntu wiki, https://help.ubuntu.com/community/Webcam). Is Cheese still safe to use after all these years? Let me know if I'm being too paranoid

    submitted by /u/optimal_honeybee
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    Is there a program for linux to manage hard drives through a graphical interface?

    Posted: 30 Oct 2020 09:21 AM PDT

    I have a pc with two SSDs and one mass storage drive, I've been looking today at how to set up the storage drive and frankly it just seems ridiculous to do it all through the command line.

    Is there a program that can manage hard drive permissions and manage whether hard-drives auto-mount at startup?

    I'm at a loss as to why these aren't just right-click options but I digress.

    submitted by /u/Pyroven
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