Converting PEM key to PPK in Ubuntu

Converting PEM key to  PPK

For putty to connect the amazon ec2 instance, it requires the security key file to be in ppk format.

Amazon provides the key file in PEM format.

To convert PEM key to PPK format in ubuntu, the command to execute on Ubuntu console(terminal):

puttgen <file.pem> file.ppk

http://manpages.ubuntu.com/manpages/hardy/man1/puttygen.1.html