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# Batch operation

The decompiler supports the batch mode operation with the text and GUI versions of IDA. All you need is to specify the -Ohexrays switch in the command line. The format of this switch is:

    -Ohexrays:-option1:-option2...:outfile:func1:func2\...

The valid options are:

- -new decompile only if output file does not exist
- -nosave do not save the database (idb) file after decompilation
- -errs send problematic databases to hex-rays.com
- -lumina use Lumina server
- -mail=my@mail.com your email (meaningful if -errs option is used)

The output file name can be prepended with + to append to it. If the specified file extension is invalid, .c will be used.

The functions to decompile can be specified by their addresses or names. The ALL keyword means all non-library non-trivial functions. For example:

    idat -Ohexrays:-errs:-mail=john@mail.com:outfile:ALL -A input

will decompile all nonlibrary non-trivial (having more than one instruction) functions to outfile.c. In the case of an error, the .idb file will be sent to hex-rays.com. The -A switch is necessary to avoid the initial dialog boxes.