问题：
debian shell脚本加入开机启动

解决：
编辑/etc/crontab，尾部加入：@reboot root /root/rules.sh即可，/root/rules.sh为脚本路径

样例：

view source
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# /etc/crontab: system-wide crontab
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# Unlike any other crontab you don't have to run the `crontab'
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# command to install the new version when you edit this file
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# and files in /etc/cron.d. These files also have username fields,
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# that none of the other crontabs do.
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SHELL=/bin/sh
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PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
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# m h dom mon dow user  command
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17 *    * * *   root    cd / && run-parts --report /etc/cron.hourly
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25 6    * * *   root    test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily )
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47 6    * * 7   root    test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.weekly )
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52 6    1 * *   root    test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.monthly )
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#
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@reboot root /root/rules.sh