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Top Forums Shell Programming and Scripting How to cut string and find missing pattern? Post 302632967 by krsnadasa on Tuesday 1st of May 2012 07:22:36 AM
Old 05-01-2012
how to cut string and find missing pattern

Hi Bart,

Code:
awk '{a[int(substr($0,3,2))]=1;n1=substr($0,1,2);n2=substr($0,5)}END{for (i=1;i<=24;i++) if (!(i in a)) print n1""sprintf("%02d",i)""n2}'

As far as I know end section willl not able to remember the value of n1 and n2 subtrings and also END section will be executed finally so I believe you have to save the values of n1 and n2 in some array then call in END for appending ... Please correct if i am wrong.

Thanks
Krsnadasa
 

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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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