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Full Discussion: Remove bracket part
Top Forums Shell Programming and Scripting Remove bracket part Post 302678687 by alister on Sunday 29th of July 2012 11:26:36 AM
Old 07-29-2012
Outside of a bracket expression, ] does not need to be escaped. It is not special.

In \[[^]]*\] and \[.*\], according to POSIX, \] is an undefined sequence. Most regular expression implementations will throw away the backslash, but they aren't required to. It would be compliant to abort with a syntax error.

Within a bracket expression, where backslash and other special characters lose their special meaning, \] simply means a literal backslash is the final character in the bracket expression.

Regards,
Alister

Last edited by alister; 07-29-2012 at 12:34 PM..
 

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fnmatch(3C)															       fnmatch(3C)

NAME
fnmatch() - match filename patterns SYNOPSIS
DESCRIPTION
performs pattern matching as described in regexp(5) under By default, the rule qualifications for filename expansion do not apply; i.e., periods (dots) and slashes are matched as ordinary characters. This default behavior can be modified by using the flags described below. The flag argument modifies the interpretation of pattern and string. If which is defined in is set in flag, a slash character in string must be explicitly matched by a slash in pattern; it cannot be matched by either the asterisk or question mark special characters or by a bracket expression. If is set in flag, a leading period must be explicitly matched. It will not be matched by a bracket expression, question mark or asterisk. By default, a period is leading if it is the first character in string. If is set in flag, a period is leading if it is the first charac- ter in string or immediately follows a slash. If is not set in flag, a backslash character in pattern followed by any other character matches that second character in string. In par- ticular, matches a backslash in string. If is set, a backslash character is treated as an ordinary character. If flag is zero, the slash character and the period are treated as regular characters. If flag has any other value, the result is unde- fined. RETURN VALUE
If string matches the pattern specified by pattern, returns zero. Otherwise, returns non-zero. EXAMPLE
The following excerpt uses to check each file in a directory against the pattern pattern = "*.c"; while(dp = readdir(dirp)){ if((fnmatch(pattern, dp->d_name,0)) == 0){ /* do processing for match */ ... } } AUTHOR
was developed by OSF and HP. SEE ALSO
sh(1), glob(3C), thread_safety(5). STANDARDS CONFORMANCE
fnmatch(3C)
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