02-01-2019
Quote:
Originally Posted by
bakunin
...
/Addendum: only now i recognised a rather careless typo in my example above, which i have now corrected: instead of the correct ${NAMES/${EXCLUDE_NAME}/} (replace ${EXCLUDE_NAME} with nothing) i used ${NAMES//${EXCLUDE_NAME}} (replace nothing with ${EXCLUDE_NAME} ??), which is fo course wrong. You may want to try again with Solaris as, alas, my trusted old U05 seems not to work any more.
...
I'm happy (or should I be sorry?) to be able to correct your humble self-correction: the original expression was
NOT wrong but corresponds to the second form quoted below.
man ksh:
Quote:
${parameter/pattern/string}
${parameter//pattern/string}
${parameter/#pattern/string}
${parameter/%pattern/string}
Expands parameter and replaces the longest match of pattern with the specified string. Each occurrence of \n in string is replaced by the portion of parameter that matches the nth sub-pattern.
...
In the first form, only the first occurrence of pattern is replaced.
In the second form, each match for pattern is replaced by the specified string.
This User Gave Thanks to RudiC For This Post:
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fnmatch(3) Library Functions Manual fnmatch(3)
NAME
fnmatch - Matches filename patterns
LIBRARY
Standard C Library (libc.so, libc.a)
SYNOPSIS
#include <fnmatch.h>
int fnmatch( const char *pattern, const char *string, int flags);
STANDARDS
Interfaces documented on this reference page conform to industry standards as follows:
fnmatch(): XPG4, XPG4-UNIX
Refer to the standards(5) reference page for more information about industry standards and associated tags.
PARAMETERS
Contains the pattern to which the string parameter is to be compared. Contains the string to be compared against the pattern parameter.
Contains a bit flag specifying the configurable attributes of the comparison to be performed by the fnmatch function.
The flags parameter modifies the interpretation of the pattern and string parameters. It is the bitwise inclusive OR (|) of 0 (zero) or
more of the following flags, which are defined in the fnmatch.h file. Slash in the string parameter only matches slash in the pattern
parameter. Leading period in the string parameter must be exactly matched by period in the pattern parameter. Unless FNM_NOESCAPE is set,
preceding a character in pattern with a (backslash character) causes fnmatch() to match that character in string. For example, \
matches a backslash in string. If FNM_NOESCAPE is set, (backslash) is interpreted as an ordinary character.
If the FNM_PATHNAME flag is set in the flags parameter, a / (slash) in the string parameter is explicitly matched by a / in the pattern
parameter. It is not matched by either the * (asterisk) or ? (question-mark) special characters, nor by a bracket expression. If the
FNM_PATHNAME flag is not set, the / is treated as an ordinary character.
If FNM_PERIOD is set in the flags parameter, then a leading period in the string parameter only matches a period in the pattern parameter;
it is not matched by either the asterisk or question-mark special characters, nor by a bracket expression. A period is determined to be
leading according to the setting of the FNM_PATHNAME flag, according to the following rules: If the FNM_PATHNAME flag is set, a period is
leading only if it is the first character in the string parameter or if it immediately follows a slash. If the FNM_PATHNAME flag is not
set, a period is leading only if it is the first character of the string parameter.
If FNM_PERIOD is not set, no special restrictions are placed on matching a period.
A (backslash character) quotes the next character, unless FNM_NOESCAPE is set. If FNM_NOESCAPE is set, (backslash) is treated as
itself.
DESCRIPTION
The fnmatch() function checks the string specified by the string parameter to see if it matches the pattern specified by the pattern param-
eter. This routine follows the match criteria of the glob() function.
The fnmatch function is useful when a program needs to perform pattern matching, such as when a directory is to be searched for a particu-
lar string (as is the case with the find command). A program like the pax command can also use the fnmatch() function to perform its pat-
tern matching operations.
RETURN VALUES
If the value in the string parameter matches the pattern specified by the pattern parameter, then the fnmatch() function returns 0 (zero).
If there is no match, the fnmatch() function returns FNM_NOMATCH, which is defined in the fnmatch.h file. If an error occurs, the fnmatch()
function returns a nonzero value.
RELATED INFORMATION
Functions: glob(3), globfree(3), regcomp(3)
Standards: standards(5) delim off
fnmatch(3)