At (command)
| at | |
|---|---|
| The ReactOS  atcommand | |
| Developer(s) | Thomas Koenig, Microsoft, ReactOS Contributors | 
| Written in | Unix-like, ReactOS: C | 
| Operating system | Unix-like, Windows, ReactOS | 
| Type | Command | 
| License | Windows: Proprietary software ReactOS: GPLv2 | 
at is a shell command 
for scheduling commands to be executed at a future time; once. The command was developed for Unix and is available on Unix and Unix-like systems, Windows, and ReactOS.