md5sum - compute and check MD5 message digest
md5sum [OPTION]... [FILE]...
MD5SUM(1) User Commands MD5SUM(1) NAME md5sum - compute and check MD5 message digest SYNOPSIS md5sum [OPTION]... [FILE]... DESCRIPTION Print or check MD5 (128-bit) checksums. With no FILE, or when FILE is -, read standard input. -b, --binary read in binary mode -c, --check read MD5 sums from the FILEs and check them --tag create a BSD-style checksum -t, --text read in text mode (default) -z, --zero end each output line with NUL, not newline, and disable file name escaping The following five options are useful only when verifying checksums: --ignore-missing don't fail or report status for missing files --quiet don't print OK for each successfully verified file --status don't output anything, status code shows success --strict exit non-zero for improperly formatted checksum lines -w, --warn warn about improperly formatted checksum lines --help display this help and exit --version output version information and exit The sums are computed as described in RFC 1321. When checking, the input should be a former output of this program. The default mode is to print a line with checksum, a space, a character indicating input mode ('*' for binary, ' ' for text or where binary is insignificant), and name for each FILE. BUGS Do not use the MD5 algorithm for security related purposes. Instead, use an SHA-2 algorithm, implemented in the programs sha224sum(1), sha256sum(1), sha384sum(1), sha512sum(1), or the BLAKE2 algorithm, implemented in b2sum(1) AUTHOR Written by Ulrich Drepper, Scott Miller, and David Madore. REPORTING BUGS GNU coreutils online help: <https://www.gnu.org/software/coreutils/> Report md5sum translation bugs to <https://translationpro- ject.org/team/> COPYRIGHT Copyright (C) 2018 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+--------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+--------------------+ |Availability | file/gnu-coreutils | +---------------+--------------------+ |Stability | Uncommitted | +---------------+--------------------+ SEE ALSO Full documentation at: <https://www.gnu.org/software/coreutils/md5sum> or available locally via: info '(coreutils) md5sum invocation' NOTES Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source- code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from https://ftp.gnu.org/gnu/coreutils/core- utils-8.30.tar.xz. Further information about this software can be found on the open source community website at https://www.gnu.org/software/coreutils. GNU coreutils 8.30 July 2018 MD5SUM(1)