Ubuntu 18.04 设置开机启动脚本

Ubuntu-18.04不能像Ubuntu-14一样通过编辑rc.local来设置开机启动脚本,通过下列简单设置后,可以使rc.local重新发挥作用。

1、建立rc-local.service文件

sudo vi /etc/systemd/system/rc-local.service

2、将下列内容复制进rc-local.service文件

[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

3、创建文件rc.local
sudo vi /etc/rc.local

4、将下列内容复制进rc.local文件

#!/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.
echo "看到这行字,说明添加自启动脚本成功" > /usr/local/test.log
exit 0

exit 0之前输入启动命令就可以了,每行一个。

5、给rc.local加上权限,启用服务

sudo chmod +x /etc/rc.local

sudo systemctl enable rc-local

6、启动服务并检查状态

sudo systemctl start rc-local.service
sudo systemctl status rc-local.service

7、重启并检查test.log文件
cat /usr/local/test.log
如果存在且显示看到这行字,说明添加自启动脚本成功说明启动项添加成功。

所有评论(3)

  1. This mistaken variation happens when lifters break the Arnold press into
    two distinct sections. Above we outlined some common claims about the Arnold press, but how true are they?
    To decide the transfer’s effectiveness, we have to first
    understand the shoulder’s muscle anatomy. Going gradual and steady is the best way to get the benefits you need from this exercise.
    Going too fast could make the results unbalanced and, this could also cause injuries.
    This train is unbelievable for muscle growth as
    a result of the Arnold press engages many different muscular tissues,
    encouraging muscular hypertrophy and the manufacturing
    of development hormones.
    One of the primary type misses on the Arnold press is “moving out and then going up, as opposed to moving up and out on the similar time,” Head says.
    Here Is every thing you should know to perform the Arnold press with
    good kind. You might, technically, exchange the traditional dumbbell press with the Arnold press.
    You must make use of a average repetition scheme with medium hundreds to bias hypertrophy.
    Carry Out eight to 12 repetitions per set with percent of
    your 1RM to stimulate the muscle tissue optimally.
    Count On expert-backed workouts, nutrition recommendation, the newest in strength sports activities, and a whole lot of motivation heading your means.
    When utilizing a kettlebell, you’ll find a way to rotate higher, partly as
    a outcome of the center of gravity of a kettlebell primarily guides
    your shoulders into optimal positioning and helps you find
    true shoulder flexion.
    Instead give attention to preserving pressure in all areas of your physique
    all through each repetition. If you’re trying to
    mix up your energy training routine, the Arnold Press is a great train to add.
    Repeat as desired for reps or units relying on what kind of exercise you’re doing.
    Right Here are step-by-step directions for the way to
    carry out this train. There’s additionally some minor activation in other parts of your physique, most notably your traps, forearms and triceps.
    If you’re wondering which is extra of an ‘all-encompassing’ shoulder exercise?
    At the top of the day, it comes all the way
    down to your training objectives and what other workouts you embrace in your regime.

    Place the weights in your knees and use your legs to kick them up to
    your shoulders. “Focus on strengthening your mid-back muscular tissues with Superman holds and banded external rotations, first,” he says.
    Commonplace shoulder press exercises sometimes work the front and
    aspect delts. The Arnold press, nevertheless, is
    famous for its ability to hit all three heads of the deltoid, making it efficient at constructing mass
    for a symmetrical shoulder. In fact, a September 2014 research by the American Council on Train found that this transfer activated the rear delts at seven times the rate of standard shoulder presses.
    Though they used the seated bent-over lateral increase in the research, the standing model enables you
    to apply your hip hinge.
    First, adding arms to decrease physique days looks like
    a bit of a reward for ending a hard leg session. We recommend a most of four units from Arnold
    urgent, and should you want a second exercise, give the rest of
    your sets to them. Finally, keep away from the frequent mistake many make when making an attempt to do the Arnold press.

    Lifting weights regularly can also cut back anxiousness
    and reduce signs of despair based on a research from 2018.
    This promotes muscular hypertrophy which is when your muscle
    cells grow and your general muscular tissues grow. Lifting
    weights additionally will increase the production of progress hormones.
    Push the weights up as you twist your wrists so that your palms are actually going through away from
    you. Sam Rider is an skilled freelance journalist, specialising in well being, fitness and wellness.

    The anterior (front) deltoid tends to get plenty of work from press-ups
    and bench presses, but the medial (lateral) and posterior (rear) usually get neglected.

    Utilizing a weightlifting belt can come in handy in the course of the Arnold press.
    Take in a deep breath and push your abs against the belt for a solid brace.

    So if one of your fitness goals is to construct sturdy shoulders, embrace the Arnold press in your
    exercises. It’s tempting to lean back as you raise,
    especially when utilizing heavier weights. Nonetheless, this can strain your
    decrease again and shift the focus away from your shoulders.
    Hold your again straight and avoid overarching by engaging your core and glutes.
    Flaring your elbows throughout concentrics can put
    undue stress in your shoulder joints and diminish the movement’s effectiveness.
    Hold your elbows consistent with your body to make sure
    correct muscle engagement. Focus on a controlled tempo,
    giving your muscles time to activate and work effectively.

    Let’s dive deeper into the inspiration behind the Arnold Press and the way
    it’s popularised itself as a staple part of any shoulder day.
    The Arnold press was created by–yes, you guessed it right–no
    aside from the long-lasting film star, bodybuilder,
    and the large man himself, Arnold Schwarzenegger.
    The toothed ring on the top and the hexagonal shape of the pinnacle stop the press-fit fastener from twisting in the component.

    When Arnold came to America in 1968 Larry Scott showed him this new type
    of press, and Arnold also saw its benefit, renaming it ‘The Arnold
    Press’. The primary thing to bear in mind when doing Arnold
    presses is to ensure you don’t transfer your elbows outward too fast
    or too far. To do Arnold presses with good type you need to
    maintain a couple of issues in thoughts.

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