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Top Forums Shell Programming and Scripting print line if 2nd field exists in text Post 302319552 by FrancoisCN on Monday 25th of May 2009 03:33:47 PM
Old 05-25-2009
print line if 2nd field exists in text

2 files, first one has 3 fields seperated by ||| and 2nd one is plain text.

I want to copy the lines from the first file if the 2nd field is present anywhere in the text file. This is what I've tried, but I'm new to awk and shell scripting in general so it's kinda broken.

Code:
#!/bin/awk -f
BEGIN 
{
   FS=" ||| ";
}

FILENAME=="./input/text" 
{
   # for all lines
   for (i; i < NR; i++) {
   # for all records on the current line
      for (j, j < NF; j++) {
         # if the 2nd field is seen in the text, increase its count
         if ($2 == $j) {
            seen[$2]++;
         }
      }
   }
}


# If the 2nd expression was seen at least once, print its corresponding line
{
   if ( seen[$2] > 0 ) {
      print $1 " \|\|\| " $2 " \|\|\| " $3;
   }
}

 

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URLCODING(3)						 libbash urlcoding Library Manual					      URLCODING(3)

NAME
urlcoding -- a Libbash library for encoding and decoding URL's. SYNOPSIS
urlEncodeString [-l] <STRING> urlEncodeFile [-l] <FILE> urlEncodeStream [-l] urlDecodeString <STRING> urlDecodeFile <FILENAME> urlDecodeStream DESCRIPTION
urlcoding is a collection of functions that convert ASCII-text to standard URL's and vice-versa. The AWK code used is based on code by Heiner Steven <heiner.steven@odn.de> The function list: urlEncodeString Creates a URL from an ASCII string urlEncodeFile Converts a file into URL-valid text urlEncodeStream Converts standard input into URL-valid text urlDecodeString Converts a URL-encoded text back to a plain-text form urlDecodeFile Coverts URL-encoded text in a file back to plain text urlDecodeStream Converts URL-encoded standard input to text Detailed interface description follows. The [-l] option for the encoding functions should be used when line-feed characters (' ') are to be encoded as well. All functions print the results of their conversions to standard output. The exit status of all functions is that of the command 'awk', with '0' for success FUNCTIONS DESCRIPTIONS
urlEncodeString [-l] <STRING> Converts STRING - a string of ASCII characters - to URL. urlEncodeFile [-l] <FILE> Coverts FILE of URL-encoded text to plain text urlEncodeStream [-l] Converts text from standard input to URL-text. urlDecodeString <STRING> Converts URL-encoded string STRING back to text. urlDecodeFile <FILENAME> Converts the URL-encoded text in FILE to plain text. urlDecodeStream Converts the URL-encoded text from standard input to plain-text AUTHORS
Alon Keren <alon.keren@gmail.com> SEE ALSO
ldbash(1), libbash(1) Linux Epoch Linux
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