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I wanted to make sure Im matching the correct command to the description, including possible tags I may need and I'd really appreciate if someone could confirm them for me:

  1. Show file permissions for normal and hidden files in a directory: ls -l -a
  2. Move files from one directory to another: mv
  3. Change a file’s permissions: chmod
  4. Show the absolute path of the directory you’re currently in: pwd
  5. Looks through the names of files and folders (recursively) for a keyword: grep
  6. Displays real-time information about processes running on the system: top
  7. Find the difference between two files (4-letter command): diff
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    The man command will help you with this. For example man mv Commented Jan 22, 2021 at 20:34
  • What's your question? Commented Jan 22, 2021 at 20:49

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I can't say I fully understand the point of the question but this

Looks through the names of files and folders (recursively) for a keyword: grep

is not entirely correct as grep will not look for folder (more commonly known as directory on *nix) names and will not work recursively without -r or -R. And - didn't you really mean find here?

For the rest, you can use the tools you listed but there plenty of alternatives which work better in some scenarios but worse in others - for example: (1) (shopt -s dotglob; stat *) (this is Bash-specific.), (2) rsync --remove-source-files, (5) ag (this one is especially good for searching in the source code), (6) htop, (7) comm.

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Homework?

Anyway, I vote forps as answer to question 6. The problem with question 5 has been addressed already.

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