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8821cu-20210916/edit-options.sh

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#!/bin/sh
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# Purpose: Make it easier to edit the correct driver options file.
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#
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# Flexible editor support.
#
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# To make this file executable:
#
# $ chmod +x edit-options.sh
#
# To execute this file:
#
# $ sudo ./edit-options.sh
#
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# Copyright(c) 2023 Nick Morrow
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of version 2 of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
SCRIPT_NAME="edit-options.sh"
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# SCRIPT_VERSION="20230710"
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OPTIONS_FILE="8821cu.conf"
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# check to ensure sudo was used to start the script
if [ "$(id -u)" -ne 0 ]; then
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echo "You must run this script with superuser (root) privileges."
echo "Try: \"sudo ./${SCRIPT_NAME}\""
exit 1
fi
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DEFAULT_EDITOR="$(cat default-editor.txt)"
# try to find the user's default text editor through the EDITORS_SEARCH array
for TEXT_EDITOR in "${VISUAL}" "${EDITOR}" "${DEFAULT_EDITOR}" vi; do
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command -v "${TEXT_EDITOR}" >/dev/null 2>&1 && break
done
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# failure message if no editor was found
if ! command -v "${TEXT_EDITOR}" >/dev/null 2>&1; then
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echo "No text editor was found (default: ${DEFAULT_EDITOR})."
echo "Please install ${DEFAULT_EDITOR} or edit the file 'default-editor.txt' to specify your editor."
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echo "Once complete, please run \"sudo ./${SCRIPT_NAME}\""
exit 1
fi
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if [ -f "/etc/modprobe.d/${OPTIONS_FILE}" ]; then
${TEXT_EDITOR} /etc/modprobe.d/${OPTIONS_FILE}
else
cp -f ${OPTIONS_FILE} /etc/modprobe.d
${TEXT_EDITOR} /etc/modprobe.d/${OPTIONS_FILE}
fi
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printf "Do you want to apply the new options by rebooting now? (recommended) [Y/n] "
read -r yn
case "$yn" in
[nN]) ;;
*) reboot ;;
esac