ocr command line

The key to using command-line arguments is that the shell script needs to interact with the person who is running the script.The bash shell provides command-line arguments to add data values after the command, command

1 Linux Command line edit shortcut keys:2 3 history displays a list of command histories4 5↑ (Ctrl +p) Display the previous command6 7↓ (Ctrl +N) Display the next command8 9!Num executes the command history list num CommandTen One!!executes the previous command A -!?string

To learn the command line, you need to master a few very useful and necessary tips1. [Tab]Using the Tab key to complete the command, the greatest benefit of this technique is that when you forget the full name of a command, you can simply enter a part of its beginning and press the Tab key to get a hint or help. Of cou

Command Line compilation in C ++ Java This article describes how to compile command lines in C ++/C and Java. In actual programming, the main () scenario with parameters is sometimes encountered. I remember the first time I generated a console program in borlan C ++ builder,The program automatically generates a main () with parameters (): Void main (INT argc, ch

About the man commandAlthough there are thousands of commands, each command has many optional parameters and specific usage, but you do not need to remember these commands. You just have to remember one:manMost commands will contain a usage guide that will tell you any details you need to know about the command, which you can enter on the command

PHP is an open source server-side scripting language, originally three letters representing the "Personal Home page", and now stands for "Php:hypertext preprocessor", which is a recursive acronym. It is a cross-platform scripting language that is heavily influenced by C, C + +, and Java.Running PHP code on the Linux command linePHP's syntax is very similar to the syntax of C, Java, and Perl with some PHP features, which is currently used by 260 millio

The SQLite library contains a command line named sqlite3, which allows you to manually enter and execute SQL commands for the SQLite database. This document provides a brief description of sqlite3. Start To start the sqlite3 program, you only need to input the "sqlite3" command with the SQLite database name. If the file does not exist, a new (database) file is cr

Before self-study python time has been used Win7, did not think, also a bit afraid to use Linux, may be a little fear of the unknown things, but, but, learning for 4 months, retreat can not be retired, whether it is the deployment of the site, or based on the needs of back-end work, Linux learning must be put on the agenda, Reference book,, "Happy Linux command line", OS installed by virtual machine Ubuntu

Today, I saw the introduction on the Internet and used the command line to send and receive emails. Receive email: Open the "run" dialog box in the "Start" menu and enter the telnet command and the remote server port number, for example: Telnet pop3.163.com 110 will establish a connection with "Netease 163 free mail" pop3 server pop3.163.com. If the connection is

Linux command line bulk replace the string in multiple files "to Baidu Library" one is the Mahuinan method, one is the Sumly method, one is the 30T method is as follows: First, Mahuinan method: The SED command allows you to bulk replace strings in multiple files. Sed-I."s/Original string/new string/g"' Grep original string-RL directory ' For example: I want to re