Bug 199741

Summary: tail(1) fails to parse plus-sign argument, reports error
Product: [Fedora] Fedora Reporter: David Rabson <tla>
Component: coreutilsAssignee: Tim Waugh <twaugh>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: 5CC: meyering, tla
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Hardware: All   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2006-07-24 05:13:49 EDT Type: ---
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Description David Rabson 2006-07-21 13:58:19 EDT
Description of problem:

  tail(1) fails to parse plus-sign argument; reports error

Version-Release number of selected component (if applicable):


How reproducible:

  /bin/echo "bad\ngood" | tail +2

should yield "good," instead gives an error message about not finding
a file called "+2".

Actual results:
  tail: cannot open `+2' for reading: No such file or directory

Expected results:

Additional info:

It's possible this originates in an argument-parsing library.

This is an urgent bug on submitter's system, since it breaks
hundreds of local shell scripts.
Comment 1 David Rabson 2006-07-21 14:03:26 EDT
Correction to procedure to reproduce bug:

/bin/echo -e "bad\ngood" | tail +2


Comment 2 Tim Waugh 2006-07-24 05:13:49 EDT
The correct syntax for this is "tail -n +2 f".  You can get the old syntax
(which does not conform to the current POSIX spec) back like this:

export _POSIX2_VERSION=199209

See the info page aobut this:

  info coreutils "Standards Conformance"