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translating by kimii
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cTop - A CLI Tool For Container Monitoring
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======
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Recent days Linux containers are famous, even most of us already working on it and few of us start learning about it.
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We have already covered article about the famous GUI (Graphical User Interface) tools such as Portainer & Rancher. This will help us to manage containers through GUI.
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This tutorial will help us to understand and monitor Linux containers through cTop command. It’s a command-line tool like top command.
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### What’s cTop
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[ctop][1] provides a concise and condensed overview of real-time metrics for multiple containers. It’s Top-like interface for container metrics.
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It displays containers metrics such as CPU utilization, Memory utilization, Disk I/O Read & Write, Process ID (PID), and Network Transmit(TX – Transmit FROM this server) and receive(RX – Receive TO this server).
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ctop comes with built-in support for Docker and runC; connectors for other container and cluster systems are planned for future releases.
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It doesn’t requires any arguments and uses Docker host variables by default.
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**Suggested Read :**
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**(#)** [Portainer – A Simple Docker Management GUI][2]
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**(#)** [Rancher – A Complete Container Management Platform For Production Environment][3]
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### How To Install cTop
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Developer offers a simple shell script, which help us to use ctop instantly. What we have to do, just download the ctop shell file at `/bin` directory for global access. Finally assign the execute permission to ctop shell file.
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Download the ctop shell file @ `/usr/local/bin` directory.
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```
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$ sudo wget https://github.com/bcicen/ctop/releases/download/v0.7/ctop-0.7-linux-amd64 -O /usr/local/bin/ctop
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```
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Set execute permission to ctop shell file.
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```
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$ sudo chmod +x /usr/local/bin/ctop
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```
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Alternatively you can install and run ctop through docker. Make sure you should have installed docker as a pre-prerequisites for this. To install docker, refer the following link.
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**Suggested Read :**
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**(#)** [How to install Docker in Linux][4]
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**(#)** [How to play with Docker images on Linux][5]
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**(#)** [How to play with Docker containers on Linux][6]
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**(#)** [How to Install, Run Applications inside Docker Containers][7]
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```
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$ docker run --rm -ti \
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--name=ctop \
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-v /var/run/docker.sock:/var/run/docker.sock \
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quay.io/vektorlab/ctop:latest
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```
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### How To Use cTop
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Just launch the ctop utility without any arguments. By default it’s bind with `a` key which display of all containers (running and non-running).
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ctop header shows your system time and total number of containers.
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```
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$ ctop
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```
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You might get the output similar to below.
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![][9]
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### How To Manage Containers
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You can able to administrate the containers using ctop. Select a container that you want to manage then hit `Enter` button and choose required options like start, stop, remove, etc,.
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![][10]
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### How To Sort Containers
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By default ctop sort the containers using state field. Hit `s` key to sort the containers in the different aspect.
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![][11]
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### How To View the Containers Metrics
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If you want to view more details & metrics about the container, just select the corresponding which you want to view then hit `o` key.
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![][12]
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### How To View Container Logs
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Select the corresponding container which you want to view the logs then hit `l` key.
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![][13]
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### Display Only Active Containers
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Run ctop command with `-a` option to show active containers only.
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![][14]
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### Open Help Dialog Box
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Run ctop, just hit `h`key to open help section.
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![][15]
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--------------------------------------------------------------------------------
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via: https://www.2daygeek.com/ctop-a-command-line-tool-for-container-monitoring-and-management-in-linux/
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作者：[2DAYGEEK][a]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]:https://www.2daygeek.com/author/2daygeek/
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[1]:https://github.com/bcicen/ctop
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[2]:https://www.2daygeek.com/portainer-a-simple-docker-management-gui/
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[3]:https://www.2daygeek.com/rancher-a-complete-container-management-platform-for-production-environment/
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[4]:https://www.2daygeek.com/install-docker-on-centos-rhel-fedora-ubuntu-debian-oracle-archi-scentific-linux-mint-opensuse/
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[5]:https://www.2daygeek.com/list-search-pull-download-remove-docker-images-on-linux/
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[6]:https://www.2daygeek.com/create-run-list-start-stop-attach-delete-interactive-daemonized-docker-containers-on-linux/
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[7]:https://www.2daygeek.com/install-run-applications-inside-docker-containers/
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[8]:data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
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[9]:https://www.2daygeek.com/wp-content/uploads/2018/02/ctop-a-command-line-tool-for-container-monitoring-and-management-in-linux-1.png
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[10]:https://www.2daygeek.com/wp-content/uploads/2018/02/ctop-a-command-line-tool-for-container-monitoring-and-management-in-linux-2.png
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[11]:https://www.2daygeek.com/wp-content/uploads/2018/02/ctop-a-command-line-tool-for-container-monitoring-and-management-in-linux-3.png
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[12]:https://www.2daygeek.com/wp-content/uploads/2018/02/ctop-a-command-line-tool-for-container-monitoring-and-management-in-linux-4a.png
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[13]:https://www.2daygeek.com/wp-content/uploads/2018/02/ctop-a-command-line-tool-for-container-monitoring-and-management-in-linux-7.png
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[14]:https://www.2daygeek.com/wp-content/uploads/2018/02/ctop-a-command-line-tool-for-container-monitoring-and-management-in-linux-5.png
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[15]:https://www.2daygeek.com/wp-content/uploads/2018/02/ctop-a-command-line-tool-for-container-monitoring-and-management-in-linux-6.png
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@ -0,0 +1,120 @@
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cTop - 用于容器监控的 CLI 工具
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======
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最近 Linux 容器很火，我们中的大多数人甚至已经在使用它，同时一些人也开始学习它。
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我们已经介绍了有名的 GUI（用户图形界面） 工具如 Portainer 和 Rancher 。这将会有助于我们通过 GUI 管理容器。
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这篇指南将会通过 cTop 命令帮助我们理解和监控 Linux 容器。它是一个类似 top 命令的命令行工具。
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### 什么是 cTop
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[ctop][1] 为多个容器提供了一个简洁凝练的实时指标概览。它是一个类 Top 的针对容器指标的界面。
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它展示了容器指标比如 CPU 利用率，内存利用率，磁盘 I/O 读写，进程 ID(PID)和网络发送（TX - 从此服务器发送）以及接受（RX - 此服务器接受）。
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ctop 伴随着对 Docker 和 runc 的内建支持；对其他容器和集群系统的连接计划在未来版本中推出。
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它不需要任何参数并且默认使用 Docker 主机变量。
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**建议阅读：**
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**(#)** [Portainer – 一个简单的 Docker 管理 GUI][2]
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**(#)** [Rancher – 一个完整的生产环境容器管理平台][3]
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### 如何安装 cTop
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开发者提供了一个简单的 shell 脚本来帮助我们直接使用 ctop。我们要做的，只是在“/bin”目录下下载 ctop shell 文件来保证全局访问。最后给予 ctop 脚本文件执行权限。
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在“/usr/local/bin”目录下下载 ctop shell 脚本。
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```
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$ sudo wget https://github.com/bcicen/ctop/releases/download/v0.7/ctop-0.7-linux-amd64 -O /usr/local/bin/ctop
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```
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对 ctop shell 脚本设置执行权限。
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```
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$ sudo chmod +x /usr/local/bin/ctop
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```
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另外你可以通过 docker 来安装和运行 ctop。在此之前先确保你已经安装过 docker。为了安装 docker，参考以下链接。
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**建议阅读：**
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**(#)** [如何在 Linux 上安装 Docker][4]
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**(#)** [如何在 Linux 上玩转 Docker 镜像][5]
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**(#)** [如何在 Linux 上玩转 Docker 容器][6]
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**(#)** [如何在 Docker 容器中安装，运行应用][7]
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```
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$ docker run --rm -ti \
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--name=ctop \
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-v /var/run/docker.sock:/var/run/docker.sock \
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quay.io/vektorlab/ctop:latest
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```
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### 如何使用 cTop
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直接启动 ctop 程序而不用任何参数。默认它与“a”键绑定来展示所有容器（运行的和没运行的）。
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ctop 头部显示你的系统时间和容器的总数。
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```
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$ ctop
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```
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你可能得到以下类似输出。
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![][9]
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### 如何管理容器
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你可以使用 ctop 来管理容器。选择一个你想要管理的容器然后按下“Enter”键，选择所需选项如 start,stop,remove 等。
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![][10]
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### 如何给容器排序
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默认 ctop 使用 state 字段来给容器排序。按下“s”键来用不同的方面给容器排序。
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![][11]
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### 如何查看容器指标
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如何你想要查看关于容器的更多细节和指标，只用选择你想要查看的相应容器然后按“o”键。
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![][12]
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### 如何查看容器日志
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选择你想要查看日志的相应容器然后按“l”键。
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![][13]
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### 仅显示活动容器
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使用“-a”选项运行 ctop 命令来仅显示活动容器
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![][14]
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### 打开帮助对话框
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运行 ctop,只需按“h”键来打开帮助部分。
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![][15]
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--------------------------------------------------------------------------------
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via: https://www.2daygeek.com/ctop-a-command-line-tool-for-container-monitoring-and-management-in-linux/
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作者：[2DAYGEEK][a]
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译者：[kimii](https://github.com/kimii)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]:https://www.2daygeek.com/author/2daygeek/
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[1]:https://github.com/bcicen/ctop
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[2]:https://www.2daygeek.com/portainer-a-simple-docker-management-gui/
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[3]:https://www.2daygeek.com/rancher-a-complete-container-management-platform-for-production-environment/
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[4]:https://www.2daygeek.com/install-docker-on-centos-rhel-fedora-ubuntu-debian-oracle-archi-scentific-linux-mint-opensuse/
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[5]:https://www.2daygeek.com/list-search-pull-download-remove-docker-images-on-linux/
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[6]:https://www.2daygeek.com/create-run-list-start-stop-attach-delete-interactive-daemonized-docker-containers-on-linux/
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[7]:https://www.2daygeek.com/install-run-applications-inside-docker-containers/
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[8]:data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
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[9]:https://www.2daygeek.com/wp-content/uploads/2018/02/ctop-a-command-line-tool-for-container-monitoring-and-management-in-linux-1.png
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[10]:https://www.2daygeek.com/wp-content/uploads/2018/02/ctop-a-command-line-tool-for-container-monitoring-and-management-in-linux-2.png
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[11]:https://www.2daygeek.com/wp-content/uploads/2018/02/ctop-a-command-line-tool-for-container-monitoring-and-management-in-linux-3.png
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[12]:https://www.2daygeek.com/wp-content/uploads/2018/02/ctop-a-command-line-tool-for-container-monitoring-and-management-in-linux-4a.png
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[13]:https://www.2daygeek.com/wp-content/uploads/2018/02/ctop-a-command-line-tool-for-container-monitoring-and-management-in-linux-7.png
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[14]:https://www.2daygeek.com/wp-content/uploads/2018/02/ctop-a-command-line-tool-for-container-monitoring-and-management-in-linux-5.png
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[15]:https://www.2daygeek.com/wp-content/uploads/2018/02/ctop-a-command-line-tool-for-container-monitoring-and-management-in-linux-6.png
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