md5sum.textutils1
Compute and check md5 message digest
Part of md5sum(1).
Usage
md5sum [OPTION] ...
[FILE] ...
Overview
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 checksums 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.
Note: There is no difference between binary mode and text mode on GNU systems.
Releases
11 releases since Debian 3.0 (Woody); the text changed 10 times.
--ignore-missing since Debian 9 (Stretch);
--quiet since Debian 6.0 (Squeeze);
--strict since Debian 7 (Wheezy);
--tag since Debian 8 (Jessie);
--zero since Debian 10 (Buster);
-z since Debian 10 (Buster).