On Command Line

1 Hadoop fs ----------------------------------------------- --------------------------------- The hadoop subcommand set executes on the root of the / home directory on the machine Is / user / root --------------------------------------------- ----------...

A few weeks ago, I published a blog about Windows Azure cloud services. I'm digging up new things and experimenting with mac,pc and Linux (I prefer Ubuntu). As a fan of PowerShell and command lines for a long time, I've been looking for ways to handle transactions in text mode, as well as the creation and deployment of script sites. There was a whole bunch of ways to access Azure using the command line-more than I thought. There is a JSON based Web API that will let those workers ...

The Linux shell refers to a program that allows users to manipulate computers by typing instructions to the keyboard. The shell executes http://www.aliyun.com/zixun/aggregation/18678.html > user-entered commands and displays the execution results on the monitor. The whole process of this interaction is text-based and differs from the graphical operations described in other chapters. This command-line-oriented user interface is called the CLI (command line ...).

Start Hadoop start-all.sh Turn off Hadoop stop-all.sh View the file list to view the files in the/user/admin/aaron directory in HDFs. 　　Hadoop Fs-ls/user/admin/aaron Lists all the files (including the files under subdirectories) in the/user/admin/aaron directory in HDFs. Hadoop fs-lsr/user ...

Overview All Hadoop commands are raised by the Bin/hadoop script. Do not specify parameters running the Hadoop script prints the description of all commands. Usage: Hadoop [--config confdir] [COMMAND] [generic_options] [command_options] Hadoop has an option parsing framework for parsing general options and running classes. Command option description--config confdir overwrite default configuration directory ...

The mode of human-computer interaction originated from the command line interaction, although the interactive mode of graphical interface is more and more widely used, but command line interaction still has its irreplaceable position. command-line interaction is a command-line http://www.aliyun.com/zixun/aggregation/11432.html "> Human-Computer Interaction, that is, users follow the prompts of the program, step-by-step input, and the program is responsible for interpretation and final execution of instructions." This article takes a simple example of deploying a war package to illustrate ...

In addition to the introduction of Windows Http://www.aliyun.com/zixun/aggregation/13357.html ">azure Web sites and exciting new virtual machine features, We have recently released a series of open source command-line tools that allow you to manage and deploy these new services on any operating system using the command line, including the first support for Apple OS X and Linux. In this article I will guide you through the installation and the basic work ...

Curses Command Front-End 1.52 The failure of this version on the compatible architecture has been corrected. Curses Command Front-End is a simple tool to quickly provide an interactive screen-oriented interface, command line scripts and commands. It prompts the user for the information they need to run the command, and can be programmed with your preferred shell to provide default predefined options and runs. It also provides a menu system, layered organization and viewer to navigate the invoked script or command ...

Professional computer staff usually need to use the command line. One of the operations is to switch to the specified directory. Here will introduce a simple windows hidden function to improve everyone to enter the specified folder command line speed to improve work efficiency. This article to a desktop into a folder command line to start a discussion. First determine the target, we have to quickly switch to the directory shown in the command line. This article is through the context menu to enter. First, let's take a look at the regular right-click directory. Then we hold down the Shift key in the keyboard, hold do not loose at the same time we ...

In many cases, we want to know how much space the individual files and directories on the hard disk are using. And the total space occupied by a directory. The du command can help us. After we enter the terminal, we can use this command in any directory. Now use this command in the OPT directory of our own Linux system. We tried to enter the command: Du. In the figure above, we use the Red line to show the size of each file and directory that occupies the hard drive. The position of the green coil is relative to the name of each file and directory. And the position of the blue circle is the order of the current eye ...