dir >> out 2>> error

dir >> consolidate 2>&1

(command > >(tee out.txt) 2> >(tee error.txt >&2)) &> consol.txt

$ ls
f

$ ls g*
ls: cannot access g*: No such file or directory

$ (ls g f > >(tee out.txt) 2> >(tee error.txt >&2)) &> consol.txt

$ cat out.txt
f

$ cat error.txt
ls: cannot access g: No such file or directory

$ cat consol.txt
f
ls: cannot access g: No such file or directory

{ { dir | tee -a out; } 2>&1 >&3 | tee -a error; } >> consolidate 3>&1