DSXchange

I need a shell script. A UNIX shell script consolidates all the Error files generated by one or more ETLs for a given interface into a single Error File.
Ex: Error file1 , Error File2, Error File 3 etc All need to be consolidated into one error file using Shell script

You shouldn't need a script, a single cat command should do what you need:
The names are illustrative only. Use a wildcard pattern that will match all of the source files and a consolidated name that does not match the wildcard pattern... or put it elsewhere.