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Full Discussion: OR variable
Top Forums Shell Programming and Scripting OR variable Post 302116730 by aigles on Tuesday 8th of May 2007 04:28:25 AM
Old 05-08-2007
Quote:
Originally Posted by aigles
Quote:
The syntax for an OR test using KSH pattern is :
Code:
if [[ "$CURRDATE" = @(05|06|07) ]]

Note: ksh93 is required.
This syntax is not ksh93 specific.
The following lines comes from the ksh88 man pages :
Code:
File Name Generation

Following substitution, each command word  is scanned for the characters *, ?, and [
unless the -f option has been set. 
If one of these characters appears then the word is regarded as a pattern.
The word is replaced with lexicographically sorted file names that match the pattern.
If no file name is found that matches the pattern, then the word is left unchanged. 
When a pattern  is used for file name generation, the character . at the start of a file name
or immediately following a /, as well as the character / itself, must be matched explicitly. 
In other instances of pattern matching the / and . are not treated specially. 

* Matches any string, including the null string. ? Matches any single character. [ . . . ] Matches any one of the enclosed characters. A pair of characters separated by - matches any character lexically between the pair, inclusive. If the first character following the opening "[ " is a "! " then any character not enclosed is matched. A - can be included in the character set by putting it as the first or last character.
A pattern-list is a list of one or more patterns separated from each other with a |. Composite patterns can be formed with one or more of the following:
?(pattern-list ) Optionally matches any one of the given patterns. *(pattern-list ) Matches zero or more occurrences of the given patterns. +(pattern-list ) Matches one or more occurrences of the given patterns. @(pattern-list ) Matches exactly one of the given patterns. !(pattern-list ) Matches anything, except one of the given patterns.

 

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set(n)							       Tcl Built-In Commands							    set(n)

__________________________________________________________________________________________________________________________________________________

NAME
set - Read and write variables SYNOPSIS
set varName ?value? _________________________________________________________________ DESCRIPTION
Returns the value of variable varName. If value is specified, then set the value of varName to value, creating a new variable if one doesn't already exist, and return its value. If varName contains an open parenthesis and ends with a close parenthesis, then it refers to an array element: the characters before the first open parenthesis are the name of the array, and the characters between the parentheses are the index within the array. Otherwise varName refers to a scalar variable. Normally, varName is unqualified (does not include the names of any containing namespaces), and the variable of that name in the current namespace is read or written. If varName includes names- pace qualifiers (in the array name if it refers to an array element), the variable in the specified namespace is read or written. If no procedure is active, then varName refers to a namespace variable (global variable if the current namespace is the global namespace). If a procedure is active, then varName refers to a parameter or local variable of the procedure unless the global command was invoked to declare varName to be global, or unless a variable command was invoked to declare varName to be a namespace variable. SEE ALSO
expr(n), proc(n), trace(n), unset(n) KEYWORDS
read, write, variable Tcl set(n)
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