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Unix & Linux

How to prevent a process from writing files

August 8, 2022 by Magenaut

I want to run a command on Linux in a way that it cannot create or open any files to write. It should still be able to read files as normal (so an empty chroot is not an option), and still be able to write to files already open (especially stdout).

Categories Q&A, Unix & Linux Tags apparmor, capabilities, linux, security, selinux Leave a comment

ssh Connection refused: how to troubleshoot?

August 8, 2022 by Magenaut

I’m trying:

Categories Q&A, Unix & Linux Tags ssh Leave a comment

How do I configure a network interface bridge from WiFi to Ethernet with Debian?

August 8, 2022 by Magenaut

I am using Raspberry Pi using Raspbian which is just Debian.

Categories Q&A, Unix & Linux Tags bridge, debian, ethernet, wifi Leave a comment

How to activate the hotkeys in Linux Debian 8 Jessie (Gnome 3 DE)?

August 8, 2022 by Magenaut

I installed the Linux Debian 8 OS with Gnome 3 Desktop Environment a couple of days ago; till then, I used Ubuntu on my PC and I always found really useful the hotkeys/shortcuts available in that distribution.

Categories Q&A, Unix & Linux Tags debian, keyboard-shortcuts Leave a comment

How to make exported shell variables permanent?

August 8, 2022 by Magenaut

export LD_PRELOAD=/usr/lib/libtsocks.so It’s ok that I can export in this way, but how can I make it permanent? I want LD_PRELOAD to still be changed after a reboot. I’m using Ubuntu and Fedora Answers: Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the … Read more

Categories Q&A, Unix & Linux Tags linux, shell Leave a comment

Using ddrescue to retrieve data off a failing ntfs disk

August 8, 2022 by Magenaut

I am attempting to save some user data of a disk that has failed in a Window 8 computer. I’ve removed the HDD that was unable to be read by the Windows 8 laptop, plugged into my OS X machine which can see the partitions but cannot mount them. (ntfs-3g cannot either).

Categories Q&A, Unix & Linux Tags data-recovery, ddrescue, linux, ntfs Leave a comment

Unexpected sort order in en_US.UTF-8 locale

August 8, 2022 by Magenaut

While trying to answer this question about SQL sorting, I noticed a sort order I did not expect:

Categories Q&A, Unix & Linux Tags glibc, locale, sort Leave a comment

Behaviour of bash command substitution with command from string in variable

August 8, 2022 by Magenaut

There are seven kinds of expansion … The order of expansions is: brace expansion; tilde expansion, parameter and variable expansion, arithmetic expansion, and command substitution (done in a left-to-right fashion); word splitting; and filename expansion

Categories Q&A, Unix & Linux Tags bash, command-line, command-substitution, variable-substitution Leave a comment

Remmina doesn’t eat keys

August 8, 2022 by Magenaut

Unlike rdesktop, when I press ALT + F4 in remmina, it doesn’t react in the Windows system, but instead closes the remmina window.

Categories Q&A, Unix & Linux Tags rdesktop, remmina, windows Leave a comment

read command in zsh throws error

August 8, 2022 by Magenaut

In zsh, running the command read -p 'erasing all directories (y/n) ?' ans, throws the error,

Categories Q&A, Unix & Linux Tags read, zsh Leave a comment
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  1. michealSmith07 on Is there a way to dynamically refresh the less command?August 21, 2022

    That is a very nice post. I like this post.

  2. anonymous on Fix libwacom9 dependency issue when upgrade DebianJune 27, 2022

    saved my day!! Thanks for the help…

  3. sreedhar on Fix libwacom9 dependency issue when upgrade DebianMay 10, 2022

    Thanks its working

  4. saintnick on Fix libwacom9 dependency issue when upgrade DebianMay 10, 2022

    remove libwacom2 worked for me as well

  5. ranafoul on Fix libwacom9 dependency issue when upgrade DebianApril 22, 2022

    apt remove libwacom2 helped on kali 2022.01. gr8

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