Shell Utills and not only

Arch

➕Package install 

sudo pacman -S package_name

✔️ System update 

sudo pacman -Syu

✖️ Package Remove 

sudo pacman -R package_name

✖️ Package Remove Without dependencies 

sudo pacman -Rdd package_name

📋 List installed packages sorted by size 

pacman -Qi | awk -F: '$1~/^Name / { name=$2 } $1~/^Installed Size / { gsub(/ /, ""); size=$2; print size, name }' | sort -hr | column -t | less

Debian

➕Package install 

sudo apt install app_name

✖️ App remove 

sudo apt remove app_name

✔️ System update

sudo apt update && sudo apt upgrade -y

Redhat

➕Package install 

sudo dnf install app_name

✖️ Package remove 

sudo dnf remove app_name

✔️ System update 

sudo dnf upgrade --refresh

App .rpmfiles install, remove

sudo rpm -i/r app_name.rpm

Arch and not only utils

‼️ Annotation

Remember abut man command and --help flag to read how to use commands 

man ls
ls --help

💽 HDD poweroff 

udisksctl power-off -b /dev/sdx

🌐 Network manager cli, wifi connect 

nmcli device wifi connect “SSID” password "xxxxx"

📁 Copy, move, remove files or folders 

cp, mv, rm filename, rm -r foldername

🖊️ Changename 

mv filename newfilename

📋 Ip adress check 

ip a

💿 Create qcow2 image 

qemu-img create -f qcow2 disk1.img 10G

📱 Mount android phone as storage (download android-file-tranfer) 

aft-mtp-mount /mnt

💿 Mount iso file as compact disc 

mount -o loop /path/to/image.iso /media/mountpoint

🗝️ Show windows product key 

sudo strings /sys/firmware/acpi/tables/MSDM

🏁 Show startup times by system.d 

systemd-analyze

🔓 tar.zst extract 

tar -I zstd -xf

🔑 Password secured zip

zip -er outputfolder.zip Folder-to-zip/

📁 Show folder/file size

du -sh foldername

📀 Make bootable Linux drive ( dont use partition )

dd bs=4M if=path/to/input.iso of=/dev/sdX conv=fdatasync status=progress

📀 Make bootable windows by woeusb, also gui available 

sudo woeusb -v --device /windows/iso/path /dev/sdx

❌Format partition to FAT32 file system.

mkfs.fat -F 32 /dev/sdXY

❌Format partition to exFAT file system. I recommend exfat file system for disk used between different operating systems.

mkfs.exfat /dev/sdXY

❌Format partition to NTFS file system (add -f flag to fast format).

mkfs.ntfs /dev/sdXY

❌Format partition to ext4 file system.

mkfs.ext4 /dev/sdXY

🧠 Display free and used memory.

free -m

Create file with certain size.

head -c "" /dev/zero > 
	example:
	head -c 10MB /dev/zero > file10mb

📖 Display systemd last boot journal.

journalctl -b

💿 Create iso from cd/dvd

Check sector size and sector.

isosize -x /dev/sr0

Create iso

dd if=/dev/sr0 of=discmage.iso bs=sector_size count=sector_count status=progress

🔗 Create symbolic link

ln -s /path/to/folder /path/to/place/symbolic/link

📂 Display path of current directory

pwd

✖️ ❕"Hardreset" format drives to zero

dd if=/dev/zero of=/dev/sdX bs=16M status=progress

📱 Mount iPhone

Download ifuse from AUR to be able to mount iPhone, also should work for iPads

  1. Start usbmuxd.service
    2. systemctl start usbmuxd.service
  2. Pair iPhone (Device must be unlocked)
    3. idevicepair pair

    You will need to confirm access on iPhone

  3. Mount iPhone
    4. ifuse -o allow_other /mountpoint

    Probably you have to change config in /etc/fuse.conf and uncomment #user_allow_other

  4. Umount iPhone
    5. fusermount -u /mountpoint

🎧 Bluetooth audio device

Needed packages pulseaudio-bluetooth and bluez-utils.

  1. Start bluetooth service
    2. systemctl start bluetooth.service
  2. Open bluetooth utility
    3. bluetoothctl

    Bluetooth utility:

    [bluetooth]# power on
    [bluetooth]# agent on
    [bluetooth]# default-agent
  3. Scan for devices
    4. [bluetooth]# scan on
  4. Pair device
    5. [bluetooth]# pair XX:XX:XX:XX:XX (MAC)
  5. Connect to paired device
    6. [bluetooth]# connect XX:XX:XX:XX:XX
  6. For automatically connect
    7. [bluetooth]# trust XX:XX:XX:XX:XX
    [bluetooth]# scan off
    [bluetooth]# exit

To switch PulseAudio switch on connected module you need to add this line to /etc/pulse/default.pa

load-module module-switch-on-connect

Also if you want, enable auto power on bluetooth edit /etc/bluetooth/main.conf

AutoEnable=true

🌐 Share internet over Ethernet

Install dnsmasq and nm-connection-editor

  1. Run nm-connection-editor from terminal.

  2. Add a new ethernet connection.

  3. Give it some sensible name. For example "Shared Internet".

  4. Go to "IPv4 Settings".

  5. For "Method:" select "Shared to other computers".

  6. Save

  7. And thats all folks.

🌐 Share internet over Wi-Fi

Install dnsmasq and nm-connection-editor

  1. Create new wireless network

  2. Create password

  3. Choose either Hotspot or Ad-hoc as Wi-Fi mode

🧡 Git

New

git init
git add
git commit -m "commit message"
git remote add origin git@github.com:username/new_repo.git
git push origin master

Exist repo

git add .
git commit -m "commit message"
git push origin master

Rename last no pushed commit

git commit --amend -m "commit message"

Rename last pushed commit

git commit --amend -m "commit message"
git push --force origin master

Manipulate the UEFI Boot Manager

List EFI bootorders

efibootmgr

Remove EFI bootorder

efibootmgr -b XXXX -B

Set EFI bootorder

efibootmgr -o XXXX