Shell

Very WIP

Bash basics

RE Concepts

You can get some info from these tools

File

Get the file type, headers, etc. This will tell you what kind of file this is so you can choose your next steps.

Strings

Dump all strings found in the file. In easy CTFs, they sometimes hide a flag in the binary. You can infer things about the file from the strings you find. Sometimes, even get passwords.

Binwalk

Full on dump a firmware image. You can extract it in whole or in parts.