JOIN

Format:   JOIN [FILE] {(file | pattern)} AS|TO (filename)
Template: FILE/M/A,SAS=TO/K/A
Location: C:  

JOIN copies all the listed files, in the order given, to one new file. This destination file cannot have the same name as any of the files that are being copied. You must supply a destination file name. The original files remian unchanged. Any number of files can be JOINed in one operation.

Example:

JOIN cool.html neat.html free.html AS big.html