practical examples of ' echo ' command in Linux
by Avishek Kumar Under:linux Commands on:august 21, 2014 translation by Smallliu
The echo command is the most commonly used built-in command for bash shells and C shells in Linux, most typically in
1.1 Learning the Echo rem CD dir command
Learning points:1. Display information: Echo2. Comment Statement: REM3. Directory Switching: CD4. Column File name: dir
One, display information: Echo
Before we learn the echo command, we'll build a new
The Linux shell can be user-defined functions and can be called casually in shell scripts.
The functions in the shell are defined in the following format:
[Function] funname [()]
{
action;
[return int;]
}
Description
1, can be with function fun
The echo command is used to print the value of the shell variable in the shell, or to output the specified string directly. The echo command of Linux, which is very commonly used in shell programming, is often used when printing variable value in a
DICOM medical image processing: C-Echo and C-Store, dicomfo-dicomBackground:
In the previous blog, we introduced the network transmission in DICOM, mainly referring to the original English text in DCMTK Wiki. By comparing the implementation of the
Format: for [parameter]% variable name in (related file or command) do execution command
Function: Executes specific commands on one or a set of files, strings, or on each object in the result of a command to achieve the desired result.Note: When
-- This article comes from TTT blog: http://www.yoyotao.net/ttt/, original address: http://www.yoyotao.net/ttt/post/139.html
Preface:Although it was a bit of research on batch processing in the past, I have never understood the for command
Read a lot of Chinese blog posts, most of the article is about the use of echo color, I really do not love to die, trace back, really look at the escape sequence is what?Escape characters, children who have studied C are aware that some control
For help documentExecutes a specific command on each file in a set of files.
For%variable in (set) do command [Command-parameters]
%variable specifies a single letter replaceable parameter.
(set) to specify one or a set of files. You can use
Links in Linux commands mean that several commands are combined and executed through the operator. In Linux, the link commands are similar to writing short shell scripts in shell and directly executed on the terminal. Link makes automatic processing
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