https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203279
Bug ID: 203279
Summary: /bin/expr operator : fails when the string has a
leading hyphen.
Product: Base System
Version: 10.2-RELEASE
Hardware: Any
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: bin
Assignee: [email protected]
Reporter: [email protected]
expr on other *NIX versions seems to handle a leading hyphen in the text
string.
On FreeBSD, the hyphen is parsed as an illegal option:
/bin/expr '-XXabs' : '.*\(aa*\)'
expr: illegal option -- X
expr: usage: expr [-e] expression
A trivial workaround is to use grouping:
/bin/expr \( '-XXabs' : '.*\(aa*\)' \)
a
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