The Open Group Base Specifications Issue 7, 2018 edition
IEEE Std 1003.1-2017 (Revision of IEEE Std 1003.1-2008)
Copyright © 2001-2018 IEEE and The Open Group
This chapter contains the definitions of the utilities, as follows:
Mandatory utilities that are present on every conformant system
Optional utilities that are present only on systems supporting the associated option; see Codes for information on the options in this volume of POSIX.1-2017
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