Sendfile

In computing, sendfile is a command which can be found in a number of contexts relating to data transmission:

Sendfile (Unix), a push-based asynchronous file transfer, regardless of whether local or remote, using the Simple Asynchronous File Transfer (SAFT), an Internet protocol bound to TCP port 487[1]
Sendfile (IBM VM), a command to transfer a file asynchronously from one VM/CMS user to another, regardless of whether local or remote
Sendfile (system call), a system call.[2][3]
As a command within an Instant messaging application.

Notes

Ulli Horlacher (2008-05-01). "SAFT / sendfile". Retrieved 2010-04-28.
sendfile(2): transfer data between file descriptors – Linux Programmer's Manual – System Calls
sendfile(2): send a file to a socket – FreeBSD System Calls Manual

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