grub-set-default:tldr:b0ad9

grub-set-default: Set the default boot entry to an entry number, name or identifier.

grub-set-default

$ sudo grub-set-default ${entry_number}

try on your machine

The command "sudo grub-set-default ${entry_number}" is used to set the default boot entry in the GRUB bootloader on a Linux system.

Here's a breakdown of the command:

"sudo": This is a command that allows a user to run a command with administrative privileges. It stands for "superuser do" and is typically used to execute commands that require root or administrative access.
"grub-set-default": This is the actual command being executed. It is specific to the GRUB bootloader, which is commonly used on Linux systems to manage the boot process. The "grub-set-default" command is used to set the default boot entry in the GRUB configuration.
"${entry_number}": This is a placeholder that represents the number of the boot entry that you want to set as the default. The actual number would be provided by the user when they run the command. Each boot entry in GRUB is assigned a number, starting from 0 for the first entry.

By running this command with the appropriate entry number, you can change the default operating system or boot option that GRUB selects when the system starts up. This is useful if you have multiple operating systems installed on your computer and want to choose a specific one to boot by default.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

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