Editing Linux Commands

== Flatpak & Applications ==

=== Give dolphin emulator flatpak full filesystem access like the non-flatpak version would have ===
 sudo flatpak override --filesystem=host org.DolphinEmu.dolphin-emu
You may also want to use FlatSeal for this

== File Operations ==

=== Copy every iso in the current folder into nintendon't format ===
 for i in *; do mkdir "$(echo $i | sed 's/.iso//')"; mv "$i" "$(echo $i | sed 's/.iso//')"/game.iso; done

=== Copy while preserving permissions [Use archive mode, resolve symlinks, and skip files that are newer on the destination] ===
 rsync -auL source-file destination-file

=== Copy with progress bar ===
 rsync --progress source_file destination_file

=== Move all files that aren't folders into a folder ===
 mv -- *(.) other_directory/

=== Create a file and set its permissions ===
 install -m 755 /dev/null filename.txt


== System Monitoring & Logs ==

=== View systemd service logs in real time [system service] ===
 sudo journalctl -u notification-parse.service -f

=== View systemd service logs in real time [user service] ===
 journalctl --user -u notification-parse.service -f

=== Print kernel version and CPU architecture ===
 uname -a


== Networking & Security ==

=== Nmap ping scan an entire subnet very quickly ===
 sudo nmap -T5 -sn 192.168.0.0/24

=== Get a list of all files with setuid / SUID permissions ===
 find / -perm -4000 -type f -exec ls -la {} 2>/dev/null \;


== Docker ==

=== Delete all docker images ===
 docker rmi -f $(docker images -a -q)


== Clipboard Utilities ==

=== Get/Set data from clipboard: ===
 getclip () {
        xclip -selection c -o
 }
 setclip () {
        xclip -selection c
 }


== Media & Encoding ==

=== Record audio files ===
 [[Record Audio Files in the Command Line]]

=== Create an SSL Key and Cert pair ===
 openssl req -new -x509 -nodes -out server.crt -keyout server.key

=== Cut a video or audio file into a clip based on seconds ===
 [[FFmpeg Cut a video to a clip by seconds]]

=== Download any yt-dlp supported video, convert it to an mp3, then automatically number it based on the order they were downloaded in the playlist ===
 yt-dlp --extract-audio --audio-format mp3 --output "%(autonumber)s - %(title)s.%(ext)s" {PUT LINK TO PLAYLIST OR VIDEO HERE}

=== Convert a folder of mp3s into DVD-compatible mpeg2 files (.dvd) while embedding a looping video on them for compatibility, reducing bit rate as low as it can go. ===
 for i in *.mp3; do; ffmpeg -stream_loop -1 -i asteracube.webm -i "$i" -shortest -r 24 -loop 1 -codec:v mpeg2video -b:v 400k -codec:a ac3 -b:a 448 -vf scale=352:240 dvd/"${i%.*}.dvd"; done


== Disk & System Management ==

=== Add kernel boot parameters on truenas scale. This command adds "nomodeset" to the kernel parameters. It is auto-applied on reboot. ===
 midclt call system.advanced.update '{"kernel_extra_options": "nomodeset"}'

=== Expand a partition to fit the whole disk without rebooting [In this case the disk is <code>/dev/nvme0n1</code> and the partition is <code>2</code>] ===
 sudo growpart /dev/nvme0n1 2
 sudo resize2fs /dev/nvme0n1p2

=== Convert an existing linux install to ageless linux ===
 curl -fsSL https://agelesslinux.org/become-ageless.sh | sudo bash -s -- --accept --flagrant

=== Remount a filesystem as read-write in the current directory ===
 sudo mount -o remount,rw /dev/sdX1 .


== Additional Resources ==

https://github.com/sujayadkesar/Linux-Privilege-Escalation#9-capabilities

[https://youtu.be/aqp5ahzeOqA Youtube.com: Common Linux Privilege Escalation: Using Kernel Exploits]

[https://arachnoid.com/SecureShell/index.html Arachnoid.com: How to use SSH]

https://github.com/OpenRC/openrc/blob/master/service-script-guide.md

https://www.truenas.com/community/threads/kernel-boot-parameter-how-to-add-to-tn-scale.110109/

https://agelesslinux.org/