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Replace all string matches from previous command in bash

Snippet Written with a loving hand by kitt some time around 19:58 on 22 April 2016

$ !!:gs/replacethis/withthis/

gs = global replace

Works only with bash version 3 or greater:

bash-3.2$ bash --version 
GNU bash, version 3.2.57

$ echo oneone
oneone
$ !!:gs/one/two/    # Repeats last command; substitutes 'one' --> 'two'.
twotwo
Source: 
BASH ^word^replacement^ on all matches?
#bash

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