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All the functions operate in the Emacs terminal interface.

Shell

This executable can spawn an interactive system shell.

Unprivileged
This function can be performed by any unprivileged user.
```
emacs -Q -nw --eval '(term "/bin/sh")'
```
Sudo
This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.

Remarks
If there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....
```
emacs -Q -nw --eval '(term "/bin/sh")'
```

File write

This executable can write data to local files.

Unprivileged
This function can be performed by any unprivileged user.
```
emacs /path/to/output-file
DATA
C-x C-s
```
Sudo
This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.

Remarks
If there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....
```
emacs /path/to/output-file
DATA
C-x C-s
```
Remarks
The content is corrupted or otherwise altered by the process, thus it might not be suitable for handling arbitrary binary data.

File read

This executable can read data from local files.

Unprivileged
This function can be performed by any unprivileged user.
```
emacs /path/to/input-file
```
Sudo
This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.

Remarks
If there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....
```
emacs /path/to/input-file
```
Remarks
The content is corrupted or otherwise altered by the process, thus it might not be suitable for handling arbitrary binary data.

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