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## Name
getpid - get current process ID
## Synopsis
```**c++
#include <unistd.h>
pid_t getpid();
```
## Description
Returns the PID (process ID) of the calling process.
## Return value
The process ID of the calling process.
## Errors
None.
## See also
* [`getppid`(2)](help://man/2/getppid)
* [`gettid`(2)](help://man/2/gettid)
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