Linux | Technical Handbook

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

Solution
echo 'input' >> filename

Solution
tail -c 100 filename

Solution
sed -i '1s/^/abcde /' filename

Solution
sudo dpkg -i /path/a.deb

Solution
head -c 100 filename

Solution
1. Login as root using 'su' command.
2. Use 'sudo visudo' to edit sudoers file.
3. Add this line ' ALL=(ALL:ALL) ALL'
4. Exit from root.

Solution
Connect the HDD/SD card(Raspberry Pi) to a different system and remove any additional lines you added to /etc/fstab.

Solution
Update package sources, add eclipse adoptium.

• wget -O - https://packages.adoptium.net/artifactory/api/gpg/key/public | sudo apt-key add -
• echo "deb https://packages.adoptium.net/artifactory/deb $(awk -F= '/^VERSION_CODENAME/{print$2}' /etc/os-release) main" | sudo tee /etc/apt/sources.list.d/adoptium.list
• sudo apt update
• sudo apt install temurin-21-jdk