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Full Discussion: For some reason, my grep doesn't work as expected
Top Forums UNIX for Dummies Questions & Answers For some reason, my grep doesn't work as expected Post 302321195 by Legend986 on Sunday 31st of May 2009 12:25:16 AM
Old 05-31-2009
For some reason, my grep doesn't work as expected
I am trying to find only those entries where 7018 and another number appear in the end of the line.

Code:
7018 2828 1423 2351
7018 2828 14887
2828 7018 1222
123 7018 1487

I am looking for a way to generate only the last two lines. I was trying to do just "grep '7018[\s\t][0-9]{1,5}" but it does not work. What I am looking for is a way to find those lines where there is 7018 and exactly one more number after it... Can someone suggest a better way please?
 

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LEARN ABOUT PLAN9

lookbib

lookbib(1)							   User Commands							lookbib(1)

NAME

       lookbib - find references in a bibliographic database

SYNOPSIS

       lookbib database

DESCRIPTION

       A  bibliographic reference is a set of lines, constituting fields of bibliographic information.	Each field starts on a line beginning with
       a `%', followed by a key-letter, then a blank, and finally the contents of the field, which may continue until the next line starting  with
       `%'.

       The lookbib utility uses an inverted index made by indxbib to find sets of bibliographic references.  It reads keywords typed after the `>'
       prompt on the terminal, and retrieves records containing all these keywords. If nothing matches, nothing is  returned  except  another  `>'
       prompt.

       It is possible to search multiple databases, as long as they have a common index made by indxbib(1).  In that case, only the first argument
       given to indxbib is specified to lookbib.

       If lookbib does not find the index files (the .i[abc] files), it looks for a reference file with the same name as the argument, without the
       suffixes.  It creates a file with a .ig suffix, suitable for use with fgrep (see grep(1)). lookbib then uses this fgrep file to find refer-
       ences.  This method is simpler to use, but the .ig file is slower to use than the .i[abc] files, and does not allow  the  use  of  multiple
       reference files.

FILES

       x.ia

       x.ib

       x.ic	index files

       x.ig	reference file

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWdoc			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       addbib(1), grep(1), indxbib(1), refer(1), roffbib(1), sortbib(1), attributes(5)

BUGS

       Probably all dates should be indexed, since many disciplines refer to literature written in the 1800s or earlier.

SunOS 5.10							    14 Sep 1992 							lookbib(1)
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