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{{Code|root}} is the most powerful user on a linux based computer system. It allows you to execute any command that is available to it. |
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It will even allow you to execute commands that are harmful to your system. For example, '''you could delete all of the contents of a folder, or important system files by accident.''' |
It will even allow you to execute commands that are harmful to your system. For example, '''you could delete all of the contents of a folder, or important system files by accident.''' |
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It is very important that you be careful when using the |
It is very important that you be careful when using the {{Code|root}} user. |
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The best option is to type [[sudo]] ("super-user do... ") at the start of individual commands you want to run as root, for example |
The best option is to type {{Code|[[sudo]]}} ("super-user do... ") at the start of individual commands you want to run as root, for example {{Code|sudo rpm ''options}}. |
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But sudo is not available in early releases such as build 650 ("ship.1", release 7.1.0). |
But sudo is not available in early releases such as build 650 ("ship.1", release 7.1.0). |
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There are several ways to permanently become the root user on an XO: |
There are several ways to permanently become the root user on an XO: |
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* In later versions of the [[Terminal Activity]] you can become "root" by clicking the "#_" icon at the top of the terminal screen. |
* In later versions of the [[Terminal Activity]] you can become "root" by clicking the "#_" icon at the top of the terminal screen. |
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* In builds earlier than 703 you may need to instead enter |
* In builds earlier than 703 you may need to instead enter {{Code|[[su -l]]}} in the Terminal Activity. |
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* In the [[console]] you can login as root. In later builds this happens automatically when you press Enter; in earlier builds, press enter and when prompted to "Login:", enter |
* In the [[console]] you can login as root. In later builds this happens automatically when you press Enter; in earlier builds, press enter and when prompted to "Login:", enter {{Code|root}} |
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The root user's prompt in a terminal normally ends with |
The root user's prompt in a terminal normally ends with {{Code|'''#'''}} rather than {{Code|'''$'''}}. |
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* Enter the command {{Code|who}} to check who is logged on. |
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* Enter {{Code|whoami}} to check the effective userid rights of the active session. |
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==See Also== |
==See Also== |
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Revision as of 01:13, 2 August 2012
root is the most powerful user on a linux based computer system. It allows you to execute any command that is available to it.
It will even allow you to execute commands that are harmful to your system. For example, you could delete all of the contents of a folder, or important system files by accident.
It is very important that you be careful when using the root user.
The best option is to type sudo ("super-user do... ") at the start of individual commands you want to run as root, for example sudo rpm options. But sudo is not available in early releases such as build 650 ("ship.1", release 7.1.0).
Becoming root
There are several ways to permanently become the root user on an XO:
- In later versions of the Terminal Activity you can become "root" by clicking the "#_" icon at the top of the terminal screen.
- In builds earlier than 703 you may need to instead enter su -l in the Terminal Activity.
- In the console you can login as root. In later builds this happens automatically when you press Enter; in earlier builds, press enter and when prompted to "Login:", enter root
The root user's prompt in a terminal normally ends with # rather than $.
- Enter the command who to check who is logged on.
- Enter whoami to check the effective userid rights of the active session.