这篇文章主要介绍了Linux systemctl常用的命令有哪些的相关知识，内容详细易懂，操作简单快捷，具有一定借鉴价值，相信大家阅读完这篇Linux systemctl常用的命令有哪些文章都会有所收获，下面我们一起来看看吧。
systemd是Linux系统最新的初始化系统(init),作用是提高系统的启动速度，尽可能启动较少的进程，尽可能更多进程并发启动。
systemctl 常用 命令
Systemd的版本
systemd --versionsystemd和systemctl的二进制文件和库的安装位置
# whereis systemd systemd: /usr/lib/systemd /etc/systemd /usr/share/systemd /usr/share/man/man1/systemd.1.gz # whereis systemctl systemctl: /usr/bin/systemctl /usr/share/man/man1/systemctl.1.gz列出所有可用的单位
# systemctl list-unit-files UNIT FILE STATE proc-sys-fs-binfmt_misc.automount static dev-hugepages.mount static dev-mqueue.mount static proc-sys-fs-binfmt_misc.mount static sys-fs-fuse-connections.mount static sys-kernel-config.mount static sys-kernel-debug.mount static tmp.mount disabled brandbot.path disabled .....列出所有运行单元
# systemctl list-units UNIT LOAD ACTIVE SUB DESCRIPTION proc-sys-fs-binfmt_misc.automount loaded active waiting Arbitrary Executable File Formats File Syste sys-devices-pc...0-1:0:0:0-block-sr0.device loaded active plugged VBOX_CD-ROM sys-devices-pc...:00:03.0-net-enp0s3.device loaded active plugged PRO/1000 MT Desktop Adapter sys-devices-pc...00:05.0-sound-card0.device loaded active plugged 82801AA AC'97 Audio Controller sys-devices-pc...:0:0-block-sda-sda1.device loaded active plugged VBOX_HARDDISK sys-devices-pc...:0:0-block-sda-sda2.device loaded active plugged LVM PV Qzyo3l-qYaL-uRUa-Cjuk-pljo-qKtX-VgBQ8 sys-devices-pc...0-2:0:0:0-block-sda.device loaded active plugged VBOX_HARDDISK sys-devices-pl...erial8250-tty-ttyS0.device loaded active plugged /sys/devices/platform/serial8250/tty/ttyS0 sys-devices-pl...erial8250-tty-ttyS1.device loaded active plugged /sys/devices/platform/serial8250/tty/ttyS1 sys-devices-pl...erial8250-tty-ttyS2.device loaded active plugged /sys/devices/platform/serial8250/tty/ttyS2 sys-devices-pl...erial8250-tty-ttyS3.device loaded active plugged /sys/devices/platform/serial8250/tty/ttyS3 sys-devices-virtual-block-dm\x2d0.device loaded active plugged /sys/devices/virtual/block/dm-0 sys-devices-virtual-block-dm\x2d1.device loaded active plugged /sys/devices/virtual/block/dm-1 sys-module-configfs.device loaded active plugged /sys/module/configfs ...检查单元是否启用?
[root@10 ~]# systemctl is-enabled kubelet enabled检查单元或服务是否正在运行？
[root@10 ~]# systemctl status kubelet -l ● kubelet.service - kubelet: The Kubernetes Node Agent Loaded: loaded (/etc/systemd/system/kubelet.service; enabled; vendor preset: disabled) Drop-In: /etc/systemd/system/kubelet.service.d └─10-kubeadm.conf Active: active (running) since Sat 2019-11-16 02:33:56 CST; 1 weeks 1 days ago Docs: https://kubernetes.io/docs/ Main PID: 566971 (kubelet) Memory: 90.4M CGroup: /system.slice/kubelet.service └─566971 /usr/bin/kubelet --bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.conf --kubeconfig=/etc/kubernetes/kubelet.conf --config=/var/lib/kubelet/config.yaml --cgroup-driver=cgroupfs --network-plugin=cni --pod-infra-container-image=10.10.101.175/k8s-deploy/pause:3.1 --system-reserved=memory=782Mi --system-reserved-cgroup=/system.slice如何在Linux中启动，重新启动，停止，重新加载和检查服务（httpd.service）的状态
# systemctl start httpd.service # systemctl restart httpd.service # systemctl stop httpd.service # systemctl reload httpd.service # systemctl status httpd.service如何在引导时激活服务并启用或禁用服务（系统引导时自动启动服务）
# systemctl is-active httpd.service # systemctl enable httpd.service # systemctl disable httpd.service关于“Linux systemctl常用的命令有哪些”这篇文章的内容就介绍到这里，感谢各位的阅读！相信大家对“Linux systemctl常用的命令有哪些”知识都有一定的了解，大家如果还想学习更多知识，欢迎关注编程网行业资讯频道。
