.TH TEE 1 .SH NAME tee \- pipe fitting .SH SYNOPSIS .B tee [ .B \-i ] [ .B \-a ] [ file ] ... .SH DESCRIPTION .I tee transcribes the standard input to the standard output and makes copies in the .I files. Option .B \-i ignores interrupts; option .B \-a causes the output to be appended to the .I files rather than overwriting them.