grub-file:tldr:9baee
The command "grub-file --is-arm-linux ${filename}" is used to check if the specified file is an ARM Linux kernel image or not.
Here is a breakdown of the command:
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"grub-file" is the name of the command-line tool being executed.
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"--is-arm-linux" is an option or flag provided to the "grub-file" tool. It tells the tool to check if the file specified is an ARM Linux kernel image.
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"${filename}" is a placeholder indicating that you need to provide the actual file name in place of it. It should be the path to the file you want to check.
When you run this command with a specific file name, the "grub-file" tool will examine the file and determine whether it is an ARM Linux kernel image or not. It will return the appropriate output indicating if the file is in fact an ARM Linux kernel image or not.