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Top Forums Shell Programming and Scripting Position of character in word Post 302892550 by rbatte1 on Thursday 13th of March 2014 11:37:30 AM
Old 03-13-2014
You can do this within ksh/bash if you wish:-
Code:
while read col1 col2 col3 col4 col5
do
   test5="${col5%%1*}"                  # Truncate string after first occurrence of 1
   position="${#test5}"                 # Get the length from zero to full length of $col5
   ((position=$position+1))             # Add one to get the true position of search
   if [ $position -le ${#col5} ]        # Check we actually found the character.
   then
      print "Found character 1 at position $position."
   else
      print "Did not find character 1 in string $col5."
   fi
done < filename

Maybe someone would care to neaten this, but for a large file, it saves spawning multiple awk commands if you are reading it through a shell script.
 

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MB_STRPOS(3)								 1							      MB_STRPOS(3)

mb_strpos - Find position of first occurrence of string in a string

SYNOPSIS
int mb_strpos (string $haystack, string $needle, [int $offset], [string $encoding = mb_internal_encoding()]) DESCRIPTION
Finds position of the first occurrence of a string in a string. Performs a multi-byte safe strpos(3) operation based on number of characters. The first character's position is 0, the second character position is 1, and so on. PARAMETERS
o $haystack - The string being checked. o $needle - The string to find in $haystack. In contrast with strpos(3), numeric values are not applied as the ordinal value of a character. o $offset - The search offset. If it is not specified, 0 is used. o $encoding -The $encoding parameter is the character encoding. If it is omitted, the internal character encoding value will be used. RETURN VALUES
Returns the numeric position of the first occurrence of $needle in the $haystack string. If $needle is not found, it returns FALSE. SEE ALSO
mb_internal_encoding(3), strpos(3). PHP Documentation Group MB_STRPOS(3)
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