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Top Forums Shell Programming and Scripting Sort alpha on 1st field, numerical on 2nd field (sci notation) Post 302324976 by FrancoisCN on Friday 12th of June 2009 10:37:55 AM
Old 06-12-2009
Sort alpha on 1st field, numerical on 2nd field (sci notation)

I want to sort alphabetically on the first field and sort in descending numerical order on the 2nd field. With a normal "sort -r -n" it does this:

abc ||| 5e-05 ||| bla
abc ||| 3 ||| ble
def ||| 1 ||| abc
def ||| 0.2 ||| def

As you can see it ignores the fact that 5e-05 is actually 0.00005 therefore smaller than 3. The output I want would be

abc ||| 3 ||| ble
abc ||| 5e-05 ||| bla
def ||| 1 ||| abc
def ||| 0.2 ||| def
 
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sortbib(1)						      General Commands Manual							sortbib(1)

Name
       sortbib - sort bibliographic database

Syntax
       sortbib [-sKEYS] database...

Description
       The  command sorts files of records containing refer key-letters by user-specified keys.  Records may be separated by blank lines, or by .[
       and .] delimiters, but the two styles may not be mixed together.  This program reads through each database and pulls out key fields,  which
       are  sorted  separately.   The sorted key fields contain the file pointer, byte offset, and length of corresponding records.  These records
       are delivered using disk seeks and reads, so may not be used in a pipeline to read standard input.

       By default, alphabetizes by the first %A and the %D fields, which contain the senior author and date.  The -s option is used to specify new
       KEYS.  For instance, -sATD will sort by author, title, and date, while -sA+D will sort by all authors, and date.  Sort keys past the fourth
       are not meaningful.  No more than 16 databases may be sorted together at one time.  Records longer than 4096 characters will be truncated.

       The command sorts on the last word on the %A line, which is assumed to be the author's last name.  A word in the final  position,  such	as
       ``jr.''	or  ``ed.'',  will be ignored if the name beforehand ends with a comma.  Authors with two-word last names or unusual constructions
       can be sorted correctly by using the convention ``'' in place of a blank.  A %Q field is considered to be the same as %A, except  sorting
       begins  with  the first, not the last, word.  The command sorts on the last word of the %D line, usually the year.  It also ignores leading
       articles (like ``A'' or ``The'') when sorting by titles in the %T or %J fields; it will ignore articles of any  modern  European  language.
       If a sort-significant field is absent from a record, places that record before other records containing that field.

Options
       -sKEYS
	  Specifies new sort KEYS.  For example, ATD sorts by author, title, and date.

See Also
       addbib(1), indxbib(1), lookbib(1), refer(1), roffbib(1)

																	sortbib(1)

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