PuTTY is a popular terminal emulator for Windows, but it is not only limited to Windows operating system. Being free and open source, it is popular among Linux users too. PuTTY supports a wide range of protocols such as serial, SSH, Telnet, rlogin, SCP, SFTP etc. PuTTY is used by seasoned sysadmins and hobbyists/maker-crowd alike. Sysadmins generally use PuTTY as an SSH and telnet client whereas the Maker community widely uses PuTTY for interfacing with the serial ports on their hardware. PuTTY ships with a command line tool named “psftp”, the PuTTY SFTP client, which is used to securely transfer files between computers over an SSH connection

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