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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
• 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.
• As a command within an Instant messaging application.

Notes

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

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