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lang-bash
!!to repeat the previous command in its entirety, unaltered, but almost anything that begins with!!:can be shortened to!:; e.g.,!:gs/string1/string2.^syntax works inzshas well. Just documenting for posterity.^foo^bar^:Gfor global search and replace.^foo^bar^:Gfor global search and replace." Doesn't work for me in Bash 4.4.19. Is that azshsyntax?