On Linux or macOS, use du to get the size of each first-level subdirectory in the current folder:

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du -h --max-depth=1

• -h: human-readable units (KB, MB, GB)
• --max-depth=1: only list first-level subdirectories

To view only the total size of the current directory:

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du -sh .

• -s: show only the total summary

These commands help you quickly understand sizes of subfolders in the current directory.