Re: Problem with positional output

I am not sure which BSD are you referring, but my OpenBSD 6.0 system does
document -E:

SED(1)                      General Commands Manual
SED(1)

NAME
     sed - stream editor

SYNOPSIS
     sed [-aEnru] [-i[extension]] command [file ...]
     sed [-aEnru] [-e command] [-f command_file] [-i[extension]] [file ...]

DESCRIPTION
     The sed utility reads the specified files, or the standard input if no
     files are specified, modifying the input as specified by a list of
     commands.  The input is then written to the standard output.

     A single command may be specified as the first argument to sed.
Multiple
     commands may be specified separated by newlines or semicolons, or by
     using the -e or -f options.  All commands are applied to the input in
the
     order they are specified regardless of their origin.

     The options are as follows:

     -a      The files listed as parameters for the w function or flag are
             created (or truncated) before any processing begins, by
default.
             The -a option causes sed to delay opening each file until a
             command containing the related w function or flag is applied
to a
             line of input.

     -E      Interpret regular expressions using POSIX extended regular
             expression syntax.  The default behaviour is to use POSIX
basic
             regular expression syntax.
Š

Thanks.

-ag



On 11/16/16, 3:41 PM, "[email protected] on behalf of Stephane
Chazelas [email protected] [sed-users]"
<[email protected]> wrote:

>2016-11-16 15:14:09 -0800, [email protected] [sed-users]:
>> 
>> 
>>  Surprisingly , gnu sed --help doesn't showup the "-E" option
>>  while it does take it sed -E "..." without any errors.
>>  
>>  BTW, the "-r" option is supposed to be doing this.
>>  
>> 
>>  This definitely calls for an update of the GNU sed help options.
>[...]
>
>GNU sed came first with -r. Then, BSD added -E for the same
>thing (which makes a lot more sense and is consistent with grep
>for instance).
>
>Then GNU grep added -E as a synonymous of -r for compatibility
>with BSD but decided to leave it undocumented..
>
>Then POSIX talked of specifying sed -E (likely to be in the next
>major version).
>
>Then GNU grep eventually documented -E (though there hasn't been
>a new released since yet I beleive).
>
>-- 
>Stephane
>
>
>------------------------------------
>Posted by: Stephane Chazelas <[email protected]>
>------------------------------------
>
>-- 
>
>------------------------------------
>
>Yahoo Groups Links
>
>
>



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