This article tries to list all special characters and their meanings.
| Character | Description | Articles |
|---|---|---|
| | | pipeline | Redirection |
| > | stdout | Redirection |
| < | stdin | Redirection |
| 2> | stderr | Redirection |
| >> | append | Redirection |
| & | duplicate handle or control operator | Redirection Handle or Control Operator |
| % | Argument modifier | Argument Modifiers |
| % | Variable call | % |
| % | Escape Character | escape a percentage |
| && | AND control operator | Control Operator |
| || | OR control operator | Control Operator |
| () | GROUPING control operator | Control Operator |
| @ | at symbol | suppresses printing the command invocation. See echo#@ |
| . | Point | The point and the bracket are used to print a blank line. See Echo |
| [ | Bracket | The point and the bracket are used to print a blank line. See Echo |
| : | colon (KOH-lon) | a drive-letter designator (C: means the C drive) or a label designator |
| ^ | escape all character except % |
The special characters that require quotes are:
<space>
&()[]{}^=;!'+,`~