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super-duplicate

Duplicate lines and exchange symbols (x/y, width/height, add/remove, etc..). Usefull for front dev.
Makio64
364

vim-mode-plus-duplicate

Duplicate an area of text using vim-mode-plus motions and text-objects.
dillonkearns
662

duplicate-removal

remove duplicate lines | 删除重复行
FloydaGithub
20,462

dedupe-lines

remove duplicate lines
jneuendorf
822