 
gawk stores information about the current process in an array named PROCINFO. The array contains the following fields:
| Field | Description | 
|---|---|
| egid | Effective group ID | 
| euid | Effective user ID | 
| FS | The type of field splitting being used, either FS or FIELDWIDTHS | 
| gid | Group ID of the calling process | 
| groupn | Supplementary user group IDs associated with the process (group1, group2, etc.) | 
| pgrpid | Process group ID | 
| pid | Process ID | 
| ppid | Parent process ID | 
| uid | User ID of the calling process | 
 
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