32v 1m tee
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TEE(1) UNIX Programmer's Manual TEE(1)
NAME
tee - pipe fitting
SYNOPSIS
tee [ -i ] [ -a ] [ file ] ...
DESCRIPTION
_T_e_e transcribes the standard input to the standard output and makes copies in the _f_i_l_e_s. Option -i ignores interrupts; option -a causes the output to be appended to the _f_i_l_e_s rather than overwriting them.