Shulou(Shulou.com)06/03 Report--

No quotation marks: the string is output as is, and the variable will be replaced

Single quotation marks: the contents of the quotation marks will be displayed intact

Double quotes: the special symbols inside will be parsed and the variables will be replaced

Program:

#! / bin/bash

Echo "hello\ nworld" # "non-variable content, direct output

Echo-n "I LOVE YOU\ n ^ 3 ^" #-n means "" content is not escaped

Echo-e "YOU KNOW\ n I DO" #-e escapes "" content

Name= "1234" # defines a name string

Echo $name # output variable name content

Echo\ $name # directly output the content after "\"

Echo "$name" # "output variable name content

Output as is in echo'$name' #'

Run:

Hello\ nworld

I LOVE YOU\ n ^ 3 ^ You KNOW

I DO

1234

$name

1234

$name

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