SHA1SUM(1) sha1sum -- SHA1 sha1sum []... []... 160- SHA1. -, . -b, --binary -c, --check --tag BSD -t, --text ( ) -z, --zero NUL , : --ignore-missing --quiet OK --status , --strict -w, --warn --help --version FIPS-180-1. . : , , , (<<*>> , << >> , ), . GNU . SHA-1 , . SHA-2, sha224sum(1), sha256sum(1), sha384sum(1), sha512sum(1), BLAKE2, b2sum(1). (Ulrich Drepper), (Scott Miller) (David Madore). - GNU coreutils: Copyright (C) 2024 Free Software Foundation, Inc. GPLv3+: GNU GPL 3 . : . , . cksum(1) , info '(coreutils) sha1sum invocation' ; GNU (GNU General Public License - GPL, 3 ) , - . - , , <>. GNU coreutils 9.5 2024 . SHA1SUM(1)