Question

I have to do an assignment like m=7 from the C++ command line application. When I run this application using sudo MyApp, the command present in the program fails to execute.

sudo m=7

fails with the following error

Command Not Found.

Is there any way so that I can assign value to a variable with the sudo keyword present in the command?
Basically I want a way to do sudo {Assignment} i.e. sudo m=3. Thanks.

Answer 1

The sudo command allows one to run an external command as a given user (default: root). m=7 is not an external command and hence cannot be run by sudo. It is a variable assignment statement that is directly interpreted and executed by the current shell.

The Command not found message indicates that sudo failed to find an executable command named m=7.

In fact, it is hard to imagine what the intended goal of running sudo m=7 might be. If you want to assign 7 to the shell variable m you do not need any special privileges or sudo for that, just run m=7. If you want to open root shell and execute some commands there starting with m=7 just start with sudo bash and then issue the m=7 statement.