Question: Need help with UNIX command Replace all occurrences in the file of the word elephant by the word wombat (replacing the case variant Elephant by

Need help with UNIX command

Replace all occurrences in the file of the word elephant by the word wombat (replacing the case variant Elephant by Wombat). Note: this can be done with a single emacs command, or perhaps two commands. Searching for each individual occurrence of elephant and manually changing it is not the way to go.

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