Usage of linux special symbols

Usage of linux special symbols-general Linux technology-Linux technology and application information. For more information, see the following section. In linux, besides wildcards, there are also some special symbols. With these special symbols, you can escape them in batches to perform continuous operations on your server. For how to use wildcards, see linux wildcard usage. For more information, see the usage of some special symbols in linux Command mode.
"#" Well no. Is an annotator in linux. It is not executed in linux.
The backslash (\) is an escape character in linux and can escape special characters into the original character for output.
"|" Pipe, which separates the definitions of two Commands
";" Semicolon is a continuous command execution in linux Command mode
"~" User main folder
"$" Variable prefix
"&" Job control, turning commands into background work
"!" Used for logical "Non"
"/" Directory symbol
">,>>" Data Stream redirection, output orientation, respectively "Replace" and "accumulate"
"<, <" Data Stream redirection, input-oriented
In linux Command mode, the single quotation mark "" does not support variable replacement. For example, the variable value of saxue is 123 echo it's $ saxue, the output is "it's $ saxue"
"Has the variable replacement function. You can replace the variables in" "with the corresponding values.
The commands in "" two "are the first commands to be executed. You can also use $ ()
"()" Is the beginning and end of shell.
"{}" Is a combination of command blocks.

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