optimizing - to find the number of occurrence Post: 302102246

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LEARN ABOUT MINIX

sort

SORT(1) 						      General Commands Manual							   SORT(1)

NAME

       sort - sort a file of ASCII lines

SYNOPSIS

       sort [-bcdfimnru] [-tc]	[-o name] [+pos1] [-pos2] file ...

OPTIONS

       -b     Skip leading blanks when making comparisons

       -c     Check to see if a file is sorted

       -d     Dictionary order: ignore punctuation

       -f     Fold upper case onto lower case

       -i     Ignore nonASCII characters

       -m     Merge presorted files

       -n     Numeric sort order

       -o     Next argument is output file

       -r     Reverse the sort order

       -t     Following character is field separator

       -u     Unique mode (delete duplicate lines)

EXAMPLES

       sort -nr file	   # Sort keys numerically, reversed

       sort +2 -4 file	   # Sort using fields 2 and 3 as key

       sort +2 -t: -o out  # Field separator is :

       sort +.3 -.6	   # Characters 3 through 5 form the key

DESCRIPTION

       Sort  sorts  one or more files.	If no files are specified, stdin is sorted.  Output is written on standard output, unless -o is specified.
       The options +pos1 -pos2 use only fields pos1 up to but not including pos2 as the sort key, where a field is a string of	characters  delim-
       ited  by  spaces and tabs, unless a different field delimiter is specified with -t.  Both pos1 and pos2 have the form m.n where m tells the
       number of fields and n tells the number of characters.  Either m or n may be omitted.

SEE ALSO

       comm(1), grep(1), uniq(1).

																	   SORT(1)