flag | Package flag implements command-line flag parsing. |
fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
github.com/pkg/sftp | Package sftp implements the SSH File Transfer Protocol as described in https://filezilla-project.org/specs/draft-ietf-secsh-filexfer-02.txt |
io | Package io provides basic interfaces to I/O primitives. |
io/ioutil | Package ioutil implements some I/O utility functions. |
os | Package os provides a platform-independent interface to operating system functionality. |