grep '[A-Z]' find lines containing any uppercase letter
aspell dump master | grep ozz | grep -v '[^A-Z]'
grep '[A-Z]' find lines containing any uppercase letter
aspell dump master | grep ozz | grep -v '[^A-Z]'
grep '[A-Z]' find lines containing any uppercase letter
LC_ALL=C grep -v '[A-Z]'
grep '[A-Z]' find lines containing any uppercase letter
grep -v '[^A-Z]'
grep '[A-Z]' find lines containing any uppercase letter
grep -v '[[:upper:]]'
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