cat has the same cat command as ubuntu 18.04
env GOPATH=`pwd` go get -u github.com/guonaihong/coreutils/cat/cat
Usage of cat:
-A, --show-all
equivalent to -vET
-E, --show-end
display $ at end of each line
-T, --show-tabs
display TAB characters as ^I
-b, --number-nonblank
number nonempty output lines, overrides -n
-e equivalent to -vE
-n, --numbe
number all output line
-s, --squeeze-blank
suppress repeated empty output lines
-t equivalent to -vT
-v, --show-nonprinting
use ^ and M- notation, except for LFD and TAB