regex - Replace a double backslash followed by quote (\\') using sed? -


i unable replace double backslash followed quote \\' in sed. current command

echo file.txt | sed "s:\\\\':\\':g"

the above command not replaces \\' \' replaces \' '

how replace exact match?

input: 

'one', 'two \\'change', 'three \'unchanged'

expected: 

'one', 'two \'change', 'three \'unchanged'

actual: 

'one', 'two \'change', 'three 'unchanged' 

$ sed "s/\\\\\\\'/\\\'/g" file 'one', 'two \'change', 'three \'unchanged'

here discussion on why sed needs 3 backslashes one


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