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MD5SUM(1) General Commands Manual MD5SUM(1)

NAME

md5sum - Print or check the MD5 checksums

SYNOPSIS

md5sum [-c|--check] [-w|--warn] [--status] [--quiet] [--ignore-missing] [--strict] [--tag] [-t|--text] [-z|--zero] [-h|--help] [-V|--version] [file]

DESCRIPTION

Print or check the MD5 checksums

OPTIONS

read checksums from the FILEs and check them
warn about improperly formatted checksum lines
don't output anything, status code shows success
don't print OK for each successfully verified file
don't fail or report status for missing files
exit non-zero for improperly formatted checksum lines
create a BSD style checksum
read in text mode (default)
end each output line with NUL, not newline, and disable file name escaping
Print help
Print version

VERSION

v(uutils coreutils) 0.9.0

EXAMPLES

Calculate the MD5 checksum for one or more files:

md5sum path/to/file1 path/to/file2 ...

Calculate and save the list of MD5 checksums to a file:

md5sum path/to/file1 path/to/file2 ... > path/to/file.md5

Calculate an MD5 checksum from `stdin`:

command | md5sum

Read a file of MD5 checksums and filenames and verify all files have matching checksums:

md5sum [-c|--check] path/to/file.md5

Only show a message for missing files or when verification fails:

md5sum [-c|--check] --quiet path/to/file.md5

Only show a message when verification fails, ignoring missing files:

md5sum --ignore-missing [-c|--check] --quiet path/to/file.md5

Check a known MD5 checksum of a file:

echo known_md5_checksum_of_the_file path/to/file | md5sum [-c|--check]

The examples are provided by the tldr-pages project <https://tldr.sh> under the CC BY 4.0 License. Please note that, as uutils is a work in progress, some examples might fail.

2026-06-04