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shellubuntuscriptingsudo

sudo whoami vs sudo echo `whoami`

Simply put, why is this? Wouldn't it make more sense that sudo echo whoami returns root too?

Cheers

me:~$ whoami
me
me:~$ sudo whoami 
root
me:~$ sudo echo `whoami`
me
Solution

  • This is happening because whoami get substituted prior the sudo and echo. Basically:

    sudo echo `whoami`

    first becomes

    sudo echo me

    and then it sudo get executed.