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Top Forums Shell Programming and Scripting Cut the final line of each sorted value Post 302759809 by Don Cragun on Wednesday 23rd of January 2013 01:09:12 AM
Old 01-23-2013
Quote:
Originally Posted by anshaa
i am using the below sorting order.

sort -k1b,1 -k2b,2 -k3b,3 -k4b,4
Since your sort command doesn't specify a field separator character and since there are no blanks in your input file, the command:
Code:
sort

will produce exactly the same results. And, as I said before and as PikK45 has also noted, using this sort order and deleting the last line of the sorted results doesn't even come close to the output you said you expect.

Even if I assume that there are multiple concatenated sets of sorted lines in your input file, the output you said you expect still doesn't even come close to what you would get by deleting the last line of each sorted set of lines in your input.
 
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)
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