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Top Forums Shell Programming and Scripting Complex data sorting in excel files or text files Post 302651855 by joeyg on Wednesday 6th of June 2012 09:31:16 AM
Old 06-06-2012
You asked many questions...

Here are some starts to your first couple questions:
Code:
$ cut -d" " -f1 <sample13.txt | cut -c2- | uniq -d
_ABCD_13208
_DBCDI_1353
_QRST_9938
_TRST_7849
_GHJK_30564
_STDT_2657

$ cut -d" " -f1 <sample13.txt | cut -c2- | uniq -u
_ABCDEF715
_EFGH_24808
_EFGH_9099
_XVYZ_24808
_GHIH_9099
_ABCDI_15931
_ABCDI_15930

The first example above shows the duplicated entries. The 2nd example shows unique lines. A 'wc' command could be appended to get a count.
 

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MB_STRCUT(3)								 1							      MB_STRCUT(3)

mb_strcut - Get part of string

SYNOPSIS
string mb_strcut (string $str, int $start, [int $length = NULL], [string $encoding = mb_internal_encoding()]) DESCRIPTION
mb_strcut(3) extracts a substring from a string similarly to mb_substr(3), but operates on bytes instead of characters. If the cut position happens to be between two bytes of a multi-byte character, the cut is performed starting from the first byte of that character. This is also the difference to the substr(3) function, which would simply cut the string between the bytes and thus result in a malformed byte sequence. PARAMETERS
o $str - The string being cut. o $start - Starting position in bytes. o $length - Length in bytes. If omitted or NULL is passed, extract all bytes to the end of the string. o $encoding -The $encoding parameter is the character encoding. If it is omitted, the internal character encoding value will be used. RETURN VALUES
mb_strcut(3) returns the portion of $str specified by the $start and $length parameters. SEE ALSO
mb_substr(3), mb_internal_encoding(3). PHP Documentation Group MB_STRCUT(3)
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