isFileName

isFileName( 
S_name 
[ tl_path ] 
) 
=> t / nil

Description

Checks if a file or directory exists.

The file name can be specified with either an absolute path or a relative path. In the latter case, current SKILL path is used if it’s not nil. Only the presence or absence of the name is checked. If found, the name can belong to either a file or a directory. isFileName differs from isFile in this regard. A path that is anchored to the current directory, for example, ./, ../, or ../../.., and so on, is not considered as a relative path.

Arguments

S_name	Path you want to check.
tl_path	List of paths to override the SKILL path.

Value Returned

t	The S_name path exists.
nil	The S_name path does not exist.

Examples

Suppose DACLib is a directory and triadc is a file in the current working directory and the SKILL path is nil.

isFileName("DACLib") 
=> t 

A directory is just a special kind of file.

isFileName("triadc") 
=> t

Result if triad1 does not exist in current working directory.

isFileName("triad1") 
=> nil 

isFileName( ".cshrc" list("." "~")) 
=> t

Related Topics

isFile

getSkillPath

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