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Top Forums Shell Programming and Scripting include NULLs in line length check Post 302330234 by jim mcnamara on Tuesday 30th of June 2009 02:26:56 PM
Old 06-30-2009
Code:
wc -c datafile | read value junk
if [[  $$( $value % 161 )) -ne 0 ]] ; then
      echo "data file does not have 161 lrecl record(s)"
else
      echo "ok"
fi

If you have to check every single line try something like this
Code:
dd if=datafile of=testfile cbs=161 block
cksum datafile | read chk1 junk
cksum testfile | read chk2 junk
if [[ "$chk1" != "$chk2" ]] ; then
   echo data format error in datafile"
fi

 

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STRLEN(3)								 1								 STRLEN(3)

strlen - Get string length

SYNOPSIS
int strlen (string $string) DESCRIPTION
Returns the length of the given $string. PARAMETERS
o $string - The string being measured for length. RETURN VALUES
The length of the $string on success, and 0 if the $string is empty. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.3.0 | | | | | | | Prior versions treated arrays as the string | | | Array, thus returning a string length of 5 and | | | emitting an E_NOTICE level error. | | | | +--------+---------------------------------------------------+ EXAMPLES
Example #1 A strlen(3) example <?php $str = 'abcdef'; echo strlen($str); // 6 $str = ' ab cd '; echo strlen($str); // 7 ?> NOTES
Note strlen(3) returns the number of bytes rather than the number of characters in a string. Note strlen(3) returns NULL when executed on arrays, and an E_WARNING level error is emitted. SEE ALSO
count(3), grapheme_strlen(3), iconv_strlen(3), mb_strlen(3). PHP Documentation Group STRLEN(3)
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