Redirect pipes of parent process without affecting child process

Question

I am running a third-party python script which launches gdb with my cpp executable. I believe the script launches gdb as a child process. I would like to disable or redirect the output from the python script while keeping the output from gdb .

Is there anyway to do this from the command line? When I pipe the script into /dev/null , even the gdb output is removed.

Modifying the python script is an option, but one I'd rather avoid as it's not very portable.

Answer 1

I would like to disable or redirect the output from the python script while keeping the output from gdb .

In this particular case you can save gdb output to a file (by default to gdb.txt ).

gdb$ set logging on
Copying output to gdb.txt.
gdb$ 

You can add this command to .gdbinit - gdb initialization script. This allows you not to modify python script. Than you can pipe python script output to /dev/null while gdb output will be saved to a file ( gdb.txt by default).