Linux Utilities

A small collection of practical command references for common Linux maintenance tasks.

Included guides

• Application Menu Refresh.sh — refreshes the local desktop-entry database after removing an application.
• Change Ownership or Mode.sh — examples of using chown and chmod to change file ownership and permissions.
• Reflector.sh — updates Arch Linux Pacman mirrors with reflector to help improve download speeds.
• Unboot Pendrive.sh — steps for removing boot data, repartitioning, and formatting a USB drive.

Usage

Review a file before running any command, then copy the relevant command into a terminal. Some commands require sudo and should be used only when you understand their effect.

Warning: Unboot Pendrive.sh contains commands that permanently erase a USB drive. Confirm the correct device with lsblk and replace /dev/sda with the actual USB device before continuing. Do not format your system drive.

Suggested repository description

Handy Linux maintenance commands for mirrors, desktop entries, permissions, and USB drives.