sshregex - Glob (wildcard) patterns
The sshregex file describes the regular expressions (or
globbing patterns) used in filename globbing with the scp2
and sftp2 commands and in the ssh2_config and sshd2_config
configuration files.
Regex syntax used with scp2 and sftp2 is ZSH_FILEGLOB.
PATTERNS FOR REGEX SYNTAX: EGREP
The escape character is a backslash (\). You can use the
backslash to specify metacharacters that you want to use
in their plain character form. In the following examples,
literal E and F denote any expression, such as a pattern
or character. Start a capturing subexpression. End a
capturing subexpression. Disjunction, match either E or F
(inclusive). E is preferred if both match. Act as Kleene
star, match E zero or more times. Closure, match E one or
more times. Option, match E optionally once. Match any
character except for newline characters (\n, \f, \r) and
the NUL byte. Match E exactly n times. Match E n or more
times. Match E at most n times. Match E no less than n
times and no more than m times. Start a character set.
(See CHARACTER SETS FOR EGREP AND ZSH_FILEGLOB
section. Match the empty string at the end of the input
or at the end of a line. Match the empty string at the
start of the input or at the beginning of a line.
ESCAPED TOKENS FOR REGEX SYNTAX: EGREP
The literal byte with octal value n..n. The NUL byte.
The literal byte with decimal value [1-9]..x. The literal
byte with hexadecimal value n..n. Match the empty string
at the beginning of a word. Match the empty string at the
end of a word. Match the empty string at a word boundary.
Match the empty string provided it is not at a word boundary.
Match a word-constituent character, equivalent to
[a:zA:Z0:9-]. Match a non-word-constituent character.
Literal alarm character. Literal escape character. Literal
line feed. Literal new line, equivalent to C's \n so
can be more than one character long. Literal carriage
return. Literal tab.
All other escaped characters denote the literal character
itself.
PATTERNS FOR REGEX SYNTAX: ZSH_FILEGLOB (or TRADITIONAL)
The escape character is a backslash (\). You can use the
backslash to specify metacharacters that you want to use
in their plain character form. In the following examples,
literal E and F denote any expression, such as a pattern
or character. Match any character string. The characters
can be any characters except for slash (/). However, the
asterisk does not match a string if a dot (.) is the first
character, or if the string contains a dot immediately
after a slash. If the previous character is a slash (/),
or the asterisk (*) is used to denote a match at the
beginning of a string, the asterisk does match a dot (.).
That is, the asterisk functions as it does in Tru64 UNIX
shell file globs. Match any single character except for a
slash (/). However, do not match a dot (.) if located at
the beginning of the string, or if the previous character
is a slash (/). That is, the question mark (?) functions
as it does in Tru64 UNIX shell file globs. Match any
sequence of characters that is either empty or ends in a
slash. However, the substring /. is not allowed. The double
asterisk (**) is equivalent to the single asterisk
(*). Act as Kleene star; match E zero or more times.
Closure; match E one or more times. Start a capturing
subexpression. End a capturing subexpression. Disjunction,
match either E or F (inclusive). E is preferred if
both match. Start a character set. .
CHARACTER SETS FOR EGREP AND ZSH_FILEGLOB [Toc] [Back]
A character set starts with the open bracket ( [ ) and
ends at the non-escaped close bracket ( ] ) that is not
part of a POSIX character set specifier and does not follow
immediately after an open bracket. The following characters
have a special meaning and need to be escaped if
meant literally: A range operator, except immediately
after an open bracket, where it loses its special meaning.
If immediately after starting an open bracket, denotes a
complement: the whole character set will be complemented.
Otherwise literal ^. Characters for which isalnum returns
true. Characters for which isalpha returns true. Characters
for which iscntrl returns true. Characters for which
isdigit returns true. Characters for which isgraph
returns true. Characters for which islower returns true.
Characters for which isprint returns true. Characters for
which ispunct returns true. Characters for which isspace
returns true. Characters for which isupper returns true.
Characters for which isxdigit returns true.
PATTERNS FOR REGEX SYNTAX: SSH
The escape character is a tilde (~). You can use the tilde
to specify metacharacters that you want to use in their
plain character form. In the following examples, literal
E and F denote any expression, such as a pattern or character.
Start a capturing subexpression. End a capturing
subexpression. Start anonymous, non-capturing subexpression.
End anonymous, non-capturing subexpression. Disjunction,
match either E or F (inclusive). E is preferred
if both match. Act as Kleene star, match E zero or more
times. Act as Kleene star, but match non-greedily (lazy
match). Closure, match E one or more times. Closure, but
match non-greedily (lazy match). Option, match E optionally
once. Option, but match non-greedily (lazy match).
Match any character except for newline characters (\n, \f,
\r) and the NUL byte. Match E exactly n times. Match E n
or more times. Match E at most n times. Match E no less
than n times and no more than m times. The lazy versions
of above.. Start a character set. One-character lookahead.
The C must be either a literal character or parse
as a character set. You can match the empty string anywhere,
provided that the next character is C or belongs to
it. One-character lookback. Same as above, but examines
the previous character instead of the next character.
Match the empty string at the end of the input. Match the
empty string at the start of the input.
ESCAPED TOKENS FOR REGEX SYNTAX: SSH
The literal byte with octal value n..n. The NUL byte.
The literal byte with decimal value [1-9]..x. The literal
byte with hexadecimal value n..n. Match the empty string
at the beginning of a word. Match the empty string at the
end of a word. Match the empty string at a word boundary.
Match the empty string provided it is not at a word boundary.
Match any digit, equivalent to [0:9]. Match any
character except a digit. Match a whitespace character
(matches space, newline, line feed, car- riage
return, tab and vertical tab). Match a non-whitespace
character. Match a word-constituent character, equivalent
to [a:zA:Z0:9-]. Match a non-word-constituent character.
Literal alarm character. Literal escape character. Literal
line feed. Literal new line, equivalent to C's \n so
can be more than one character long. Literal carriage
return. Literal tab.
All other escaped characters denote the literal character
itself.
CHARACTER SETS FOR REGEX SYNTAX SSH [Toc] [Back]
A character set starts with the open bracket ( [ ) and
ends at the non-escaped close bracket ( ] ) that is not
part of a POSIX character set specifier and does not follow
immediately after an open bracket. The following characters
have a special meaning and need to be escaped if
meant literally: A range operator, except immediately
after an open bracket where it loses its special meaning.
Until next +, the characters, ranges, and sets will be
subtracted from the current set instead of adding. If it
appears as the first character after an open bracket, it
starts subtracting from a set containing all characters
instead of the empty set. Until next -, the characters,
ranges, and sets will be added to the current set. This
is the default. Characters for which isalnum returns
true. Characters for which isalpha returns true. Characters
for which iscntrl returns true. Characters for which
isdigit returns true. Characters for which isgraph
returns true. Characters for which islower returns true.
Characters for which isprint returns true. Characters for
which ispunct returns true. Characters for which isspace
returns true. Characters for which isupper returns true.
Characters for which isxdigit returns true.
It is also possible to include the predefined escaped
character sets into a newly defined one, so
[~d~s] matches digits and whitespace characters. Also,
escape sequences resulting in literals work inside character
sets.
[[:xdigit:]XY] is typically equivalent to
[[0123456789ABCDEFabcdefXY].
SSH is a registered trademark of SSH Communication Security
Ltd.
Commands: scp2(1), sftp2(1)
Files: ssh2_config(4), sshd2_config(4)
sshregex(5)
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