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Full Discussion: awk help to mask characters
Top Forums Shell Programming and Scripting awk help to mask characters Post 303025458 by vgersh99 on Friday 2nd of November 2018 03:54:27 PM
Old 11-02-2018
this is a bit convoluted - others might find a better, more generic approach - this is brute-force:
Code:
$ echo 'His phone number is (123) 456-7890 and account is 34567 887272. ' | \
   awk '
     BEGIN{m="************"} 
     {
      l=length($5);
      $5="(" substr(m,2,l-2) ")"

      l=index($6,"-")
      $6=substr(m,1,l-1) substr($6,l)

     l=length($(NF-1))
     $(NF-1)=substr(m,1,l)

     match($NF,".*[^0-9]")
     $NF=substr(m,1,RLENGTH-5) substr($NF,RLENGTH-4)
}
1'

produces:
Code:
His phone number is (***) ***-7890 and account is ***** **7272.


Last edited by vgersh99; 11-02-2018 at 05:59 PM..
This User Gave Thanks to vgersh99 For This Post:
 

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ICONV_SUBSTR(3) 							 1							   ICONV_SUBSTR(3)

iconv_substr - Cut out part of a string

SYNOPSIS
string iconv_substr (string $str, int $offset, [int $length = iconv_strlen($str, $charset)], [string $charset = ini_get("iconv.inter- nal_encoding")]) DESCRIPTION
Cuts a portion of $str specified by the $offset and $length parameters. PARAMETERS
o $str - The original string. o $offset - If $offset is non-negative, iconv_substr(3) cuts the portion out of $str beginning at $offset'th character, counting from zero. If $offset is negative, iconv_substr(3) cuts out the portion beginning at the position, $offset characters away from the end of $str. o $length - If $length is given and is positive, the return value will contain at most $length characters of the portion that begins at $offset (depending on the length of $string). If negative $length is passed, iconv_substr(3) cuts the portion out of $str from the $offset'th character up to the character that is $length characters away from the end of the string. In case $offset is also negative, the start position is calculated beforehand according to the rule explained above. o $charset - If $charset parameter is omitted, $string are assumed to be encoded in iconv.internal_encoding. Note that $offset and $length parameters are always deemed to represent offsets that are calculated on the basis of the character set determined by $charset, whilst the counterpart substr(3) always takes these for byte offsets. RETURN VALUES
Returns the portion of $str specified by the $offset and $length parameters. If $str is shorter than $offset characters long, FALSE will be returned. SEE ALSO
substr(3), mb_substr(3), mb_strcut(3). PHP Documentation Group ICONV_SUBSTR(3)
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