42 lines
1.2 KiB
Bash
42 lines
1.2 KiB
Bash
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#!/bin/bash
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#==============================================================================
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# generates an SSH key under default user location ~/.ssh/
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# and add the public key to the clipboard
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#
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# the email could be given when calling the script or be prompted later
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email=''
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filename=$(hostname)
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user=$(whoami)
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usage='Usage: generateSSH.bash [-e email]'
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# handle options
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while getopts 'e:v' flag; do
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case "${flag}" in
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e) email=${OPTARG};;
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esac
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done
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# if the mail is not given, prompt it
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if [ -z "$email" ]
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then
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echo -n "Please enter your mail: "
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read email
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fi
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# generates the key-couple
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# cat /dev/zero create an empty file to be filled by the key
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# then ssh-keygen is called with:
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# -q to call it silently (no verbose)
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# -N with empty string to set no-password
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# -t to specify the type of key
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# -C to set the user mail
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cat /dev/zero | ssh-keygen -q -N "" -t ed25519 -C "${user}@${filename}" -f ~/.ssh/$filename
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# then copy the public key into the clipboard
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clip < ~/.ssh/${filename}.pub
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# print output for user
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echo -e "\nThe keyfiles are generated under ~/.ssh/"
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echo -e "\nThe public key is in your clipboard, ready to be added to your Github account."
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