比较新的Linux发行版已经没有rc.local文件了。因为已经将其服务化了。
解决方法：
1、设置rc-local.service
sudo vim /etc/systemd/system/rc-local.service
[Unit]
Description=/etc/rc.local Compatibility
ConditionPathExists=/etc/rc.local
[Service]
Type=forking
ExecStart=/etc/rc.local start
TimeoutSec=0
StandardOutput=tty
RemainAfterExit=yes
SysVStartPriority=99
[Install]
WantedBy=multi-user.target
2、激活rc-local.service
sudo systemctl enable rc-local.service
3、添加启动服务
手工创建或者拷贝已有的/etc/rc.local，并赋予执行权限
#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
# 下面这条是要开机启动的命令
/home/selfcs/anaconda3/bin/Python /home/selfcs/t.py > /home/selfcs/auto.log
exit 0
#给予脚本执行权限
sudo chmod +x /etc/rc.local
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