# MX\_SRCHPATH

> [HTML Version](mx_srchpath.htm)

_Added June 2018_

**xcall MIAMEX, MX\_SRCHPATH, file, foundpath**

MX\_SRCHPATH (MIAMEX 191) searchs for a file in the system path.

**Parameters**

_file_  ([String](string.md))  \[in\]

filename to search for. Wilcards and directory names disallowed.

_foundpath_  ([String](string.md))  \[out\]

returns "" if not found, else the full path.

**Comments**

The search path is system dependent, but normally includes the current directory, the directory from which the A-Shell executable was loaded, plus all the directories included in the PATH environment variable. 

One use of this function would be to check whether a particular external command exists before attempting to launch it via HOSTEX[xs](keyword-types.md).

**History**

2018 June, A-Shell 6.5.1638:  Function added to A-Shell.