Matching File Names with glob
The glob command expands a pattern into the set of matching file names. The general form of the glob command is:
glob ?flags? pattern ?pattern? ...
The pattern syntax is similar to the string match patterns:
* matches zero or more characters.
? matches a single character.
[abc] matches a set of characters.
{a,b,c} matches any of a, b, or c.
All other characters must match themselves.
The -nocomplain flag causes glob to return an empty list if no files match the pattern. Otherwise, glob raises an error if no files match.
The -- flag must be used if the pattern begins with a -.
Unlike the glob matching in csh, the Tcl glob command matches only the names of existing files. In csh, the {a,b} construct can match nonexistent ...
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