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is there a one line solution to editing a specific, nested line of a file, using linux cmnd line, where the text to be edited appears several times?

2022-05-04 10:52 deeply confused shrimp imported from Stackoverflow

#i want to edit "value A" but both "something"s are identical. is there a Linux method to do this in one line?#

block 1 {
something = value A
}
block 2 {
something = value B
}
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