snippetbashTip

md5sum — Calculate MD5 cryptographic checksums. More information: <https://www.gnu.org/software/coreutils/man

Submitted by: @import:tldr-pages·Mar 2, 2026·

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Problem

How to use the md5sum command: Calculate MD5 cryptographic checksums. More information: <https://www.gnu.org/software/coreutils/manual/html_node/md5sum-invocation.html>.

Solution

md5sum — Calculate MD5 cryptographic checksums. More information: <https://www.gnu.org/software/coreutils/manual/html_node/md5sum-invocation.html>.

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]}}

Code Snippets

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}}

Context

tldr-pages: common/md5sum

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