ssh:tldr:944c0
The command "ssh-keygen -l -E ${md5} -f ${~--ssh-filename}" is used to generate the MD5 fingerprint of an SSH public key file.
Let's break down the command:
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"ssh-keygen" is the command to generate and manage SSH authentication keys.
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"-l" is an option in the ssh-keygen command to request the visualization of the fingerprint. It is used to display the fingerprint of the specified public key file.
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"-E ${md5}" is another option in the ssh-keygen command to specify the hash algorithm used for fingerprint generation. In this case, it is set to use MD5 as the hash algorithm.
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"-f ${~--ssh-filename}" specifies the path and filename of the public key file for which you want to generate the fingerprint. "${~--ssh-filename}" is a placeholder for the actual filename, which you need to replace with the appropriate value. The "~" tilde character is used to expand variables in this context.
To use this command, you should replace "${~--ssh-filename}" with the actual path and filename of the SSH public key file you want to generate the fingerprint for. For example, if you have a public key file called "my_key.pub" located in your home directory, you would replace "${~--ssh-filename}" with "~/my_key.pub" or "/path/to/my_key.pub".
After running this command, it will output the MD5 fingerprint of the specified SSH public key file, which can be used for various identification and authentication purposes.