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Sed-style format strings treat all characters as literals except:
|
character |
description |
|---|---|
|
& |
The ampersand character is replaced in the output stream by the whole of what matched the regular expression. Use \& to output a literal '&' character. |
|
\ |
Specifies an escape sequence. |
An escape character followed by any character x, outputs that character unless x is one of the escape sequences shown below.
|
Escape |
Meaning |
|---|---|
|
\a |
Outputs the bell character: '\a'. |
|
\e |
Outputs the ANSI escape character (code point 27). |
|
\f |
Outputs a form feed character: '\f' |
|
\n |
Outputs a newline character: '\n'. |
|
\r |
Outputs a carriage return character: '\r'. |
|
\t |
Outputs a tab character: '\t'. |
|
\v |
Outputs a vertical tab character: '\v'. |
|
\xDD |
Outputs the character whose hexadecimal code point is 0xDD |
|
\x{DDDD} |
Outputs the character whose hexadecimal code point is 0xDDDDD |
|
\cX |
Outputs the ANSI escape sequence "escape-X". |
|
\D |
If D is a decimal digit in the range 1-9, then outputs the text that matched sub-expression D. |