Name the executable file

You can explicitly specify the name of the executable file with the -o option.

For example, the following esql command produces an executable file called inpt:
esql -o inpt custinpt.ec ordinpt.ec

If esql is running on a Windows™ operating system, the name of the target file defaults to the name of the first source file on the esql command line. The extension is changed to either .exe or .dll depending on the type of target being generated.

If esql is running on a UNIX™ operating system, the name of the target file defaults to whatever is the default for your C compiler, usually a.out.