Shell

Quickly jump to a specific directory in the shellOn the computer to put the project code unified into a directory "~/code", often need to jump from other directories to the code directory, always enter the directory is more trouble, and then think

[This is my own study notes, welcome reprint, but please specify the source:http://blog.csdn.net/jesson20121020] Shell Script basic elements:#!/bin/bash ---First line # ---comment variable flow control structureLook at a simple example,

Update the local code to the server shell scriptThe first problem with Ubuntu as a development machine OS is to put the updated code on the test server to runWww.ahlinux.comBefore using Windows with WINSCP Update code to the server upThere are no

One, variableVariables in the shell are divided into: local variables, environment variables, positional parameters;Local variables: Variables that can only be used in scripts for the user's current shell lifetime, local variables are invalidated as

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/58/4C/wKiom1St7-jhv5MEAAJw30MjWNA274.jpg "style=" float: none; "title=" QQ picture 20150104161512.png "alt=" Wkiom1st7-jhv5meaajw30mjwna274.jpg "/>650) this.width=650; "src=" http://s3.51cto.

I. BACKGROUNDToday, suddenly found that the latest news thumbnails on the mobile client are not displayed, on the server looked at,Discover that new news images do not generate thumbnails at all.This set of news release system is very old program,

Stream Editor Simple usage of SED sed[options] sed cmds files Option –e Connect multiple Edit commands -f Specifies the SED script file name -N prevents input lines from being entered automatically Sed ' 4, $d ' test.in the first 4 lines of the

Like other languages, the Shell can also contain external scripts that merge the contents of the external script into the current script.The Shell contains scripts that can be used: . FileName Or SOURCE filename The

The following are personal understandings and are for informational purposes only.First, IntroductionHBase is a column-oriented distributed database developed on HDFS that is suitable for random read/write ultra-large data sets (often difficult to

Learning Shell Pre-script basics: http://www.92csz.com/study/linux/12.htm Shell Scripting Full Learning: http://blog.chinaunix.net/uid-9078183-id-2436460.html Shell script Programming Common sense: http://www.cnblogs.com/ebusi/archive/2011/02/09/195

Wildcard characters:The so-called wildcard, refers to the time a file name style, can be used to compare the file name to find the matching files.*: Represents an arbitrary string, which can be an empty string？ : Represents a character, but cannot

SortSort operations, which are sorted according to a set of rules for one or more rows in a file. Output to standard output and is not saved to any file.-t specifies the filed delimiter.        By default, spaces are specified, and multiple spaces

Recent work has been compiled shell script to the customer use, will inevitably encounter some sensitive information do not want to let customers know, so the SHC script encryption method compiled binary file submitted to the customer use, found

Article background:Wrote an article on how to build a personal website on your personal computer.Create a Web site that is entirely up to you (i)But a personal website is built on the PC, and the external computer is not directly accessible to our

Sch encrypts shell scripts 02 Sch encrypts shell scripts 02 I. Introduction SHC (shell script compiler) is the shell script compiler. Scripts compiled through SHC are not readable for common users. Therefore, if you want your code to implement

Introduction to the ssh "Secure Shell" Protocol Traditional network service programs, such as ftp, pop, and telnet, are inherently insecure because they transmit passwords and data in plain text on the network, people with ulterior motives can

Sch encrypts shell scripts 02, schshell Sch encrypts shell scripts 02 I. Introduction SHC (shell script compiler) is the shell script compiler. Scripts compiled through SHC are not readable for common users. Therefore, if you want your code to

Gzexe encrypts shell scripts 01, gzexeshell Gzexe encrypts shell scripts 01 I. Introduction Most of the time, our script involves some private information, such as the user name, password, or other important information. We use some encryption

Frequently used shell commands (updated in succession) and shell commands It's just something that I often use, not comprehensive. 1. Obtain the returned values before the MPs queue. Echo $ {PIPESTATUS [0]} E.g. root@node2:~# date1 | echo 22No

Common shell commands (updated in succession) 1. Obtain the returned values before the MPs queue. Echo $ {PIPESTATUS [0]} E.g.   root@node2:~# date1 | echo 22No command 'date1' found, did you mean: Command 'date' from package 'coreutils' (main)date1: