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Files and paths · Lesson 2 of 36 · 8 minutes

Copy and move

Duplicate and rename project files while checking paths before and after.

Mastery 0/3Run itExplain itApply it
learner@clairosSimulated Linux lab
learner@clairos:~ $
↑ history · Tab complete · Ctrl+C cancel · Esc, Tab to leaveExit 0

Understand the pattern

Copy and move mistakes are easy to prevent with a quick ls or cat.

mkdir
Create a directory. -p also creates missing parent directories and accepts an existing directory.

Creating a folder does not change the current directory.

cp
Copy a file to a new location, leaving the original in place.

Confirm the destination before replacing a file. This lab supports file copies, not every cp option.

mv
Move or rename a file; the old path no longer names it afterward.

A successful move should be verified at both the destination and the old path.

cat
Read one or more files to standard output without editing their contents.

Reading a source file should precede changing it; avoid printing real secrets.

Worked example and expected result
$ mkdir -p lab
(no output; exit 0)

Exit status: 0. The command completed successfully in the training fixture.

$ cp projects/hello.txt lab/hello-copy.txt
(no output; exit 0)

Exit status: 0. The command completed successfully in the training fixture.

$ mv lab/hello-copy.txt lab/renamed.txt
(no output; exit 0)

Exit status: 0. The command completed successfully in the training fixture.

$ cat lab/renamed.txt
Hello from a fake project file.

Exit status: 0. The command completed successfully in the training fixture.

Try a variation

Repeat this workflow in the sandbox with a different scratch filename. Keep the system fixtures unchanged and compare the observed output with your expectation before moving on.

Explain it

In “Copy and move”, which interpretation is safe?

Apply it elsewhere

Before adapting the mv workflow from “Copy and move” to another server, what should you do?

Keep the momentum.

Complete the lab, then explain and apply the pattern.

Next: Safe deletionTry an incident drill

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Keep learning

  1. 01FilesCreate folders and files, then copy, move, and remove lab files carefully.Practice
  2. 02Safe deletionRemove a single lab file and learn why wildcards, root, and force deletes are blocked.Practice
  3. 03Find filesSearch the simulated filesystem by root and filename pattern.Practice