如何用awk中的转义双引号替换双引号？

Question

In awk how can I replace all double quotes by escaped double quotes?

The dog is "very" beautiful

would become

The dog is \"very\" beautiful

I've seen this answer ( Using gsub to replace a double quote with two double quotes? ) and I've tried to adapt it, but I'm not very good with awk (and sed is no option because I work both on Linux and OS X and they have different 'sed' installed)

Answer 1

From the answer you linked:

With gsub :

echo 'The dog is "very" beautiful' | gawk '{ gsub(/"/,"\\\"") } 1'

Alternative, with sed :

echo 'The dog is "very" beautiful' | sed 's/"/\\"/g'

In both cases output is:

The dog is \\"very\\" beautiful

Answer 2

you may to use with GNU awk:

echo 'The dog is "very" beautiful' | gawk '{ gsub(/"/,"\\\"") } 1'

you get

The dog is \"very\" beautiful

explanation:

for special characters \\ and " , you must to use escape sequence \\\\ and \\"