MPE/iX Shell and Utilities Reference Manual, Vol 1

awk(1) MPE/iX Shell and Utilities awk(1)

LIMITS

Most constructions in this implementation of awk are dynamic, limited only by memory

restrictions of the target machine. The parser stack depth is limited to 150 levels. Attempting

to process extremely complicated programs may result in an overﬂow of this stack, causing an

error.

PORTABILITY

POSIX

.2. x/OPEN Portability Guide 4.0. All UNIX systems.

The ord function is an extension to traditional implementations of awk. The toupper and

tolower functions and the ENVIRON array are in POSIX and the UNIX System V Release 4

version of awk. This version is a superset of New AWK as described in The AWK Program-

ming Language by Aho, Weinberger, and Kernighan.

The shell that the system function uses and that awk uses to run pipelines for getline,

print and printf is system dependent. On the

MPE/iX system, this is always the MPE/iX

Shell.

MPE/iX NOTES

For information on how the current MPE/iX implementation may affect the operation of this

utility, see Appendix A, MPE/iX Implementation Considerations.