created: 20230111153758951
creator: Octt
icon: 🐧
modified: 20231224171918426
modifier: Octt
page-cover: https://images.unsplash.com/photo-1549605659-32d82da3a059?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D
tags: $:/i18n:en Unix
title: Linux

<<^wikipediaframe Linux en>>

!! ''Docs''

* [[The Linux Kernel documentation|https://docs.kernel.org/]]
* [[Embedded Linux Wiki|https://elinux.org/Main_Page]]
* [[die.net Linux Documentation|https://linux.die.net]]

!!! ''Manpages''

* on [[linux die|https://linux.die.net/man]]
* or, simplified: [[tldr pages|https://tldr.sh/]] --- <<#[ Git "https://github.com/tldr-pages">>

!!! ''Misc''

* LDP (obsolete?)
** [[The Network Administrators' Guide|https://tldp.org/LDP/nag/]]
** [[Linux-MIPS for PS1?|https://www.linux-mips.org/wiki/PS1]]

* [[SquashFS|https://tldp.org/HOWTO/SquashFS-HOWTO/whatis.html]], [[DwarFS|https://github.com/mhx/dwarfs]]
* cannot access fuse mount as root or other users, [[Why does root get Permission denied when accessing FUSE directory?|https://unix.stackexchange.com/questions/17402/why-does-root-get-permission-denied-when-accessing-fuse-directory#17423]] --- To allow access to other users, add `user_allow_other` in `/etc/fuse.conf`, then mount fs with `-o allow_root` (only root) or `-o allow_other` (any user, including root).
* [[How to extend the life of SD card used as root partition?|https://raspberrypi.stackexchange.com/questions/169/how-can-i-extend-the-life-of-my-sd-card]]

* [[systemd-nspawn|https://wiki.archlinux.org/title/Systemd-nspawn]] --- //chroot on steroids// for systemd hosts and guests.
** Quick boot a mounted rootfs: `-b -D ${rootfs path}`.
** Kill booted container from shell: hold Ctrl and quickly press ] for 3 times.

* [[Running a script every time a new kernel is installed|https://unix.stackexchange.com/questions/30320/running-a-script-every-time-a-new-kernel-is-installed]] --- Just place a sh script in `/etc/kernel/postinst.d/` (with the correct filename order).

* [[linuxserver/webtop|https://github.com/linuxserver/docker-webtop]] --- //Ubuntu, Alpine, Arch, and Fedora based Webtop Docker images, Linux in a web browser supporting popular desktop environments//
** Note: apparently the `/websockify` HTTP endpoint doesn't respect the option for installing the container under an HTTP subpath; in practice this could mean that more than one container at the same time cannot be used behind a reverse proxy without some modification, but instead have to be accessed from their dedicated port directly.

!!! ''Benchmarks''

* [[Paul Raspberry Pi Benchmarks|https://willy-tech.de/raspberry-pi-benchmarks/]]

!!! ''Troubleshooting, practical guides''

* [[Linux Hint|https://linuxhint.com/]]
* [[Linuxize|https://linuxize.com/]] --- //Linux Tips, Tricks and Tutorials//
* [[Ubuntu Geek|https://www.ubuntugeek.com/]] --- //Ubuntu Linux Tutorials,Howtos,Tips & News//

* [[How to Zip Files and Directories in Linux|https://linuxize.com/post/how-to-zip-files-and-directories-in-linux/]] --- //the `zip` util and all important options//

* [[Ubuntu 18.04 - pulseaudio Daemon startup failed|https://askubuntu.com/questions/1114659/ubuntu-18-04-pulseaudio-daemon-startup-failed]]

* [[Create a Linux Swap File|https://linuxize.com/post/create-a-linux-swap-file/]]
* [[How to Increase Swap on Raspberry Pi|https://linuxhint.com/increase-swap-raspberry-pi/]] --- edit the `/etc/dphys-swapfile` file accordingly, then run: `sudo dphys-swapfile {swapoff,setup,swapon}`
* [[cannot mount /dev/loop1 read-only|https://serverfault.com/questions/839898/cannot-mount-block-device-dev-loop-read-only]] --- Filesystem might have a dirty log, using `-o norecovery` can still mount it readonly.

* [[How to take back control of /etc/resolv.conf on Linux|https://www.ctrl.blog/entry/resolvconf-tutorial.html]] --- //Several DNS-related programs want to automatically manage the DNS name server and resolution configuration file at `/etc/resolv.conf`. In some situations, you may want to manage this file yourself.//

* [[How do I start a process with a nice value of -20 and not give it root privilege?|https://unix.stackexchange.com/questions/72934/how-do-i-start-a-process-with-a-nice-value-of-20-and-not-give-it-root-privilege]] --- quick hack: `sudo nice -n -20 su -c ${cmd} ${user}`
* [[How to Show FPS Counter in Linux Games|https://linuxhint.com/show_fps_counter_linux_games/]]
* [[How to Check CPU Temperature on Linux|https://phoenixnap.com/kb/linux-cpu-temp]]