How to replace single quote (') with backslash and then single quote (\) with sed?

Question

How to replace single quote (') with backslash and then single quote (\) with sed?

sed s/\'/\\\'/ 

will not work because you can never write a literal.

 sed ":a;N;s/\'/\\'/g" <file1 >file2 

will not work because the backslash will no longer remove the quote; it is treated as a quote from the regular expression.

Answer 1

just specify a replacement

 $ echo \' | sed s/\'/"\\\'"/ $ \' 

eg

 $ cat text1 this is a string, it has quotes, that its quality $ sed s/\'/"\\\'"/ text1 > text2 $ cat text2 this is a string, it has quotes, that\ its quality 

Answer 2

Try the following:

 sed -es/\'/\\\\\'/g input > output 

To prove that this works:

 echo "Hello 'World'" | sed -es/\'/\\\\\'/g 

The output should be:

 Hello \'World\' 

Answer 3

how about: sed "s, ', BBBB', g" file where B is the backslash ... these are 4 backslashes ...

Answer 4

Use the -e option.

sed -es / \ '/ \\' / g file2

Answer 5

It works:

 <<<"''''" sed 's/'\''/\\&/;s/\('"'"'\)\(..\)$/\\\1\2/;'s/\'\'$/\\\\\'\'/";s/'$/\\\'/" \'\'\'\'