Linux

1th column min 1~592nd hour 1~23 (0 = midnight)3rd Liege 1~314th Column Month 1~125th Column Week 0~6 (0 = Sunday)6th List of commands to runHere is the format for crontab:Time-sharing day and month command to runHere are some examples of crontab

First, install Vim (this is available without the need to install a graphical interface)1. Which vim: see if Vim is installed2. Yum Search vim: Search Vim installation package　　　　3. Yum Install package name: Install by serial number inIi.

Just found oneself again website download material time compressed package may be again under Windows compression, and then after the decompression of Linux on their own garbled situation, but can put into the Recycle Bin, but the tragedy is caused

The tail command writes the file to standard output starting at the specified point. Using the-f option of the tail command makes it easy to see the log files that are being changed, TAIL-F filename will display the most up-to-date contents of the

How to display desktops in GNOME 3 How to show desktop in GNOME 3 How do you display the desktop in GNOME 3? GNOME is a great desktop environment, but it focuses more on inter-program switching. What if you want to close all running Windows and

Use Git to back up Linux configuration files in minutes When we use a Linux server, we sometimes need to back up the configuration file. The traditional backup method is to copy a file, rename it, and insert some characters at the end of the

Learning with Linux: using these Linux applications to conquer your Mathematical Learning This article is part of a series of learning with Linux: Learning with Linux: Learning Type Learning with Linux: Physical Simulation Learning with Linux:

Use NTP for Time Synchronization in CentOS 7 1. NTP Clock Synchronization MethodsNTP has two clock synchronization modes in linux: Direct synchronization and smooth synchronization:Direct SynchronizationUse the ntpdate command to synchronize and

Firebug and DevTools Integration You may have heard of our efforts to unify Firefox's Local developer tools (DevTools) and Firebug. We have been trying to add all of our favorite Firebug features to local DevTools to make them multi-process

Nic added to CentOS I have done a silly job, I want to add a new Nic on the Server, but because it has been unable to start, it is natural that CentOS 6 has additional settings, therefore, I checked the materials for two days and tried many methods,

Linux crontab command1. Introduction crond is a daemon process used in linux to periodically execute a task or wait for processing certain events. It is similar to the scheduled task in windows. After the operating system is installed, by default,

Wdcp in Linux supports two installation methodsWdcp supports two installation methods: 1. source code compilation: This installation is troublesome and time-consuming, generally 20 minutes to an hour. Depending on the machine configuration, the

Shell Command collectionShell is the interface between the user and the Linux operating system. Ccat zdd Browse File zdd content cat zdd1 zdd2 browse the content of multiple files cat-n zdd Browse File zdd content and display the row number cd back

Automatic partitioning, formatting, and mounting scriptsFunction: automatically checks whether there are unpartitioned data disks, formats new data disks, and automatically mounts the data disks. The following problems are solved: one-click checks

Samba public folder permission settings Requirement 1: public folder, which can be read and written by all users Requirement 2: It can be seen from requirement 1 that all users have read and write permissions. However, according to business

How to achieve remote SSH password-free login for Linux Hosts The author of this article has just a few Linux systems, and now we need to implement remote ssh password-free login between hosts. The method is simple. Use ssh-keygen to generate

How to install the Go1.5 development environment in Mac source code Download the Go source code package.Go1.4 to Go1.5 is a new change in the Go language,The gc tool chain is being converted from C to Go. For more information, see the description of

Rapid installation and deployment of DRBD DRBD is favored by O & M personnel for its open source, simple, efficient, and outstanding performance. The main function is to synchronize Images Between Two device blocks of the same size on different

Parsing Ceph: processing at the network layer In the current network programming implementation, most projects adopt the Asynchronous Network I/O Method Based on Event Notification. At present, both Epoll and Kqueue have become mainstream network

How to install the Apache server in Linux Due to the learning needs, all the Apache source code packages are manually installed, and the installation process has many strange problems. However, if you find out what the problem is, it is not too