If I run
ssh-keygen -t rsa -N "" -f id_rsa
and the file id_rsa already exists, it will prompt me whether I want to overwrite:
id_rsa already exists.
Overwrite (y/n)?
How do I automatically answer no in a bash script? I checked man ssh-keygen but couldn't find any such option.
you could simply do like this: echo "n"|ssh-keygen -t rsa -N "" -f id_rsa