Create report.current as another name for report.txt on the same filesystem.
Share the inode and data rather than copying file contents.
Which command is appropriate?
ln TARGET LINK_NAME creates a hard link by default. Both directory entries refer to the same inode and data.
Detailed explanation
ln report.txt report.currentCorrect. ln report.txt report.current creates a hard link.
Correct. ln report.txt report.current creates a hard link.
ln -s report.txt report.currentIncorrect. -s creates a symbolic link.
Incorrect. -s creates a symbolic link.
cp report.txt report.currentIncorrect. cp creates a separate file, even when contents initially match.
Incorrect. cp creates a separate file, even when contents initially match.
mv report.txt report.currentIncorrect. mv renames or moves the existing directory entry.
Incorrect. mv renames or moves the existing directory entry.
Try it yourself
An example you can run in a temporary verification environment.
ln --helpExpected result
既定はhard link、--symbolicでsymbolic linkを作る説明Key points
- The default is a hard link
- The inode is shared
- It is not a content copy
Notes
- Environment: GNU coreutils 9.x／Linux
- Command output formatting can vary slightly by distribution or tool version.
- Run the example in a temporary directory or process when possible.
Foundation review
Read the scope first
Check whether the command acts on the current shell, a new process, an existing process, or a file.
Verify the observable result
Use the supplied command and compare the output with the expected result.