[bug #28329] egrep error when GREP_OPTIONS=-E

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?28329>

                 Summary: egrep error when GREP_OPTIONS=-E
                 Project: grep
            Submitted by: None
            Submitted on: Fri 18 Dec 2009 04:19:21 AM UTC
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any

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Details:

When the environment variable <b>GREP_OPTIONS=-E</b>, egrep reports an
'unknown option' error.

'grep -E -E' doesn't cause an error and this is theoretically equivalent to
egrep with GREP_OPTIONS set.

I believe that egrep should ignore any '-E' option set in GREP_OPTIONS.

'fgrep' has similar issues with <b>GREP_OPTIONS=-F</b>.

Platform: cygwin under Windows XP Pro SP3
egrep -V: GNU grep 2.5.3

To reproduce:
GREP_OPTIONS=-E
egrep --help





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