Clean all distfiles except for installed packages (exact version), those which are less than one month old, bigger than 50MB, or fetch-restricted:
# eclean-dist -d -t1m -s50M -f
From a crontab, silently clean packages in the safest mode, and then distfiles in destructive mode but protecting files less than a week old, every sunday at 1am
0 1 * * sun eclean -C -q packages ; eclean -C -q -d -t1w distfiles
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