If -e is in effect, the following sequences are recognized:ĠNNN byte with octal value NNN (1 to 3 digits). View the man echo pair -eThe options are described as follows:Įnable interpretation of backslash escapes. In the bash shell, you can use the echoImperative -eOption to test the ANSI escape code. Testing ANSI escape code with echo command Commonly used \eEscape characters to represent ESC characters. In different programming languages, the writing of character encoding values may be different. The escape character is the character corresponding to the ESC key.īecause pressing the ESC key will not get a character that can be displayed, you need to use a specific encoding value to represent the character. The basic format is as follows: Esc[escape code The ANSI escape code is composed of a string of ASCII encoded strings, which requires ASCII encoding EscapeCharacters and [Character, followed by a specific escape code, specifies the corresponding operation. The bash shell is used as an example to illustrate how to use ANSI escape codes. In Linux, ANSI escape codes can be used to set character display color, move cursor position, clear character display, etc.ĪNSI escape code is supported by the terminal itself, independent of the programming language, and can be used in C language, Java, python, or shell. This article describes how to use the ANSI escape code to set the terminal character display color, move the cursor position, and achieve a progress bar percentage jump effect.
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