Finding files modified within seven days | LinuC Level 1 101 Exam original practice question

1.02.2Basic

Find regular files under /home/shared modified less than seven days ago.

Use GNU find's day-based test.

Which condition is appropriate?

Hint 1: Focus on the requirement

Select modification time and then apply the comparison direction for a recent-file window.

Hint 2: Key terms

Review the short command and filesystem definitions before comparing the choices.

-mtime: A find test for days since the content modification time.
-atime: A find test for days since the last access time.
Older-than comparison: The plus form that selects an age beyond the given day count.
Newer-than comparison: The minus form that selects an age below the given day count.

Detailed explanation

Incorrectfind /home/shared -type f -mtime +7

Incorrect. +7 selects files older than seven days.

Correctfind /home/shared -type f -mtime -7

Correct. find /home/shared -type f -mtime -7 selects recent files.

Incorrectfind /home/shared -type f -atime -7

Incorrect. -atime tests access time, not modification time.

Incorrectfind /home/shared -type f -size -7

Incorrect. -size tests size, not age.

An example you can run in a temporary verification environment.

tmp=$(mktemp -d); touch "$tmp/recent"; touch -d '10 days ago' "$tmp/old"; find "$tmp" -type f -mtime -7 -printf '%f\n'; rm -rf "$tmp"

recent

Environment: GNU findutils 4.x / GNU touch / 一時ファイル
Use disposable files and directories for destructive or timestamp-related checks.
Command details can vary slightly between GNU and non-GNU implementations.

Foundation review

Modification age and access age are different signals; the sign controls which side of the day threshold is selected.

Remember that day tests use whole 24-hour periods; use a minute test for finer boundaries.

Question IDKL-101-403

EnvironmentGNU findutils 4.x / GNU touch / 一時ファイル

Last technical review2026-08-13

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