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based on an earlier version of the Wolfram Language.
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$Path

$Path
gives the default list of directories to search in attempting to find an external file.
  • The structure of directory and file names may differ from one computer system to another.
  • The setting for $Path can be overridden in specific functions using the Path option.
  • The directory names are specified by strings. The full file names tested are of the form ToFileName.
  • On most computer systems, the following special characters can be used in directory names:
.the current directory
..the directory one level up in the hierarchy
~the user's home directory
  • $Path can contain nested sublists.
Add a directory in which to look for files after all of the system defaults:
Add a directory in which to look for files before any of the system defaults:
Add a directory in which to look for files after all of the system defaults:
In[1]:=
Click for copyable input
Add a directory in which to look for files before any of the system defaults:
In[2]:=
Click for copyable input
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