HP-UX Reference (11i v3 07/02) - 5 Miscellaneous Topics (vol 9)

r
regexp(5) regexp(5)
Multiple alternative patterns in a single clause can be specified by separating individual patterns with
the vertical bar character (|); strings matching any of the patterns separated this way will cause the
corresponding command list to be selected.
SEE ALSO
ksh(1), sh(1), fnmatch(3C), glob(3C), regcomp(3C), setlocale(3C), environ(5).
STANDARDS CONFORMANCE
<regexp.h> : AES, SVID2, SVID3, XPG2, XPG3, XPG4
410 Hewlett-Packard Company 8 HP-UX 11i Version 3: February 2007