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1. Commands and Utilities v2

Product Information

Environment Specification

Temporary Waivers

1.1 Feature Groups

Question 1: Which of the following feature groups are supported by the implementation?

Response

UNIX Extension

Yes

Conformance to this Product Standard does not require extensions to the cc and c89 commands identified by the UNIX Extension feature group to be supported. However, support of this extended functionality is required for conformance to the UNIX Product Standard.

1.2 POSIX.2 Supported Features

Question 2: Which of the following options, specified in the <unistd.h> header, are available on the system?

Response

Macro Name	Meaning	Provided
_POSIX2_C_BIND	Implementation supports the C language binding option.	Yes
_POSIX2_C_DEV	Implementation supports the C language development utilities option.	Yes
_POSIX2_CHAR_TERM	Implementation supports at least one terminal type.	Yes
_POSIX2_FORT_DEV	Implementation supports the FORTRAN Development Utilities Option.	No
_POSIX2_FORT_RUN	Implementation supports the FORTRAN Run-time Utilities.	No
_POSIX2_LOCALEDEF	Implementation supports the creation of locales by the localedef utility.	Yes
_POSIX2_SW_DEV	Implementation supports the Software Developments Utilities Option.	Yes
_POSIX2_UPE	Implementation supports the User Portability Utilities Option.	Yes

1.3 Development Utilities

1.3.1 Supported Commands

Question 3: Which of the Software development utilities are not provided with the implementation?

Response

All development utilities are provided.

1.4 FORTRAN Option

1.4.1 FORTRAN Utility

Question 4: Is the FORTRAN fort77 utility provided?

Response

No

1.5 Possibly Unsupportable Utilities and Options

Question 5: Which of the following utilities and utility options are not supported on the implementation?

Response

Utility	Option	Supported
ar	-s	Yes
cancel		Yes
cu		Yes
lp	-m	Yes
	-o	No
	-t	Yes
	-w	Yes
lpstat		No
sort	-z	Yes
tabs	+m	Yes
uucp		Yes
uulog		Yes
uuname		Yes
uupick		Yes
uustat		Yes
uuto		Yes
uux		Yes

1.6 Specific Commands and Utilities

1.6.1 at

Question 6: How does the at command interpret a non-null SHELL environment variable?

Response

Uses sh irrespective of the setting of SHELL.

1.6.2 awk

Question 7: What is the limit on the number of open streams provided by awk?

Response

64 open streams.

1.6.3 batch

Question 8: How does the batch command interpret a non-null SHELL environment variable?

Response

Uses sh irrespective of the setting of SHELL.

Question 9: Which defined names are automatically provided by the compiler?

Response

From the C89 Manpage: __LANGUAGE_C__, __unix__, __osf__, __alpha__, _SYSTYPE_BSD, LANGUAGE_ASSEMBLY, __LANGUAGE_ASSEMBLY__

Question 10: When multiple input files are specified, where does c89 direct identification messages designating the start of each input file processing?

Response

Standard error.

Question 11: What are the limits associated with external symbols imposed by c89?

Response

Description	Minimum Maximum	Implementation Maximum
Number of significant bytes	31	1023
Number of external symbols per source or object file	511	1023
Total number of external symbols	4095	No fixed limit

1.6.4 cancel

Question 12: Is the submitter of an lp job notified when the job is cancelled by someone else?

Response

No

1.6.5 cp

Question 13: What is the affect of alternate access control mechanisms on file copies?

Response

The Access Control List (ACL) function, if enabled, may prevent the cp command from accessing files to be copied. ACL are disabled by default. ACL functionality is described in the ACL Manpage.

1.6.6 date

Question 14: Does date permit the setting of the date and time?

Response

Yes

1.6.7 ex

Question 15: What restrictions are imposed on the set of commands within the rhs of the map command?

Response

A maximum of 128 map macros can be defined with a 2048 Byte total.

1.6.8 fc

Question 16: Is the history list mechanism disabled for users with appropriate privileges who do not set HISTFILE?

Response

No

1.6.9 fort77

Question 17: When multiple input files are specified, where does fort77 direct identification messages designating the start of each input file processing?

Response

Not applicable.

Question 18: What are the limits associated with external symbols imposed by fort77?

Response

Description	Minimum Maximum	Implementation Maximum
Number of significant bytes	31	N/A
Number of external symbols per source or object file	511	N/A
Total number of external symbols	4095	N/A

1.6.10 lex

Question 19: Where are error messages sent when the lex -t option is not specified?

Response

Standard output.

1.6.11 ln

Question 20: Can ln create links to a directory?

Response

No

1.6.12 localedef

Question 21: What is the default character mapping used when the localedef -f option is not specified?

Response

The default is ISO8859-1

1.6.13 lp

Question 22: What lp option or operator command is used to suppress the printing of a banner page?

Response

lp -o nobanner

1.6.14 ls

Question 23: How many bytes are in a block as reported by ls?

Response

1024

1.6.15 make

Question 24: What additional variables does make add to its environment?

Response

MAKE, AR, AS, ARFLAGS, ASFLAGS, YACC, YFLAGS, LEX, LFLAGS, LDFLAGS, LOADLIBES, CC, CP, CPFLAGS, CFLAGS, FC, F90C, FFLAGS, GET, GFLAGS, SCCSFLAGS, SCCSGETFLAGS

Question 25: Does the default MAKEFLAGS environment variable contain additional implementation-dependent options?

Response

MAKEFLAGS is not defined by default. It is a user definable variable and if defined is used by make.

1.6.16 newgrp

Question 26: Does newgrp allow users who are not listed as a member of a group which has no password to change to that group?

Response

No

Question 27: Are there any other implementation-specific authorisation restrictions that affect newgrp?

Response

Only a user with superuser authorization can change the primary group of the shell process to one to which that user does not belong.

1.6.17 nice and renice

Question 28: What are the limits and default values used by nice and renice?

Response

Maximum nice value	19
Minimum nice value	-10
Default nice value	10

1.6.18 pax

Question 29: What is the default archive format used by pax?

Response

Extended tar interchange format.

Question 30: How does pax handle reading and writing of archives that span multiple files?

Response

The user is prompted for the next archive file, in the traditional manner of cpio.

Question 31: How does pax handle invalid filenames when it is extracting files from an archive?

Response

An error is issued indicating that the file is ignored, processing continues.

1.6.19 printf

Question 32: Does printf support the e, E, f, g and G floating point conversion specifications?

Response

Yes

1.6.20 sh

Question 33: Is the environment variable IFS ignored when the shell is invoked?

Response

Yes

1.6.21 touch

Question 34: What is the latest date after the Epoch that can be used by touch?

Response

Tue Jan 19 03:14:07 2038 UTC

1.6.22 yacc

Question 35: What are the limits of yacc's internal tables?

Response

Description	Minimum Maximum	Implementation Maximum
Number of tokens	126	3000
Number of non-terminals	200	1000
Number of rules	300	2000
Number of states	600	5000
Length of rules	5200	40000
Number of actions	4000	70000

Copyright © 1999 Compaq Computer Corporation
All rights reserved.

2. Change History

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