CAT(1) CAT(1) cat - concatenate files and print on the standard output cat []... []... () . , -, . -A, --show-all -vET -b, --number-nonblank , -n -e -vE -E, --show-ends $ -n, --number -s, --squeeze-blank -t -vT -T, --show-tabs ,,^I" -u () -v, --show-nonprinting ^ M- , --help --version cat f - g -, , -. cat . . . coreutils: Copyright (C) 2023 Free Software Foundation, Inc. 3+: 3 . : . , . tac(1) ,,info '(coreutils) cat invocation'" ; 3 . . , - TODO <>. coreutils 9.4 2024 CAT(1)