SU.1
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操作系统开发
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C/C++
- SU(1) Minix Programmer's Manual SU(1)
- NAME
- su - temporarily log in as superuser or another user
- SYNOPSIS
- su [name]
- EXAMPLES
- su # Become superuser
- su ast # Become ast
- DESCRIPTION
- Su can be used to temporarily login as another user. It prompts for the
- superuser password. If the correct password is entered, su creates a
- shell with the desired uid. If no name is specified, root is assumed.
- To exit the temporary shell, type CTRL-D. When memory is tight, it is
- better to become superuser by logging out and then logging in again as
- root, rather than using su since the latter creates an extra shell in
- memory. Any user with a zero group id need not type a password. This
- makes life easier for the system administrator.
- SEE ALSO
- login(1).
- 1