.Dd 2015-10-08 .Dt TEE 1 .Os sbase .Sh NAME .Nm tee .Nd multiply stdin .Sh SYNOPSIS .Nm .Op Fl ai .Op Ar file ... .Sh DESCRIPTION .Nm reads from stdin and writes to stdout and each .Ar file . .Sh OPTIONS .Bl -tag -width Ds .It Fl a Append to each .Ar file instead of overwriting it. .It Fl i Ignore SIGINT, see .Xr signal 7 . .El .Sh STANDARDS The .Nm utility is compliant with the .St -p1003.1-2013 specification.