sed: appending words residing in separate file

mr_scary · 10-05-2006, 10:01 AM

I have a file (file1) containing words one per line. I have a second small file (file2) acting as a template containing a single keyword, say, BLAH. I would like to append all the words (lines) in the first file where the keyword is in the second.

So

$cat file1

one;
two;
three;

$cat file2

line1
line2 BLAH
line3

Desired output:

line1
line2 one;two;three;
line3

I figured sed would work but I'm having trouble.

ghostdog74 · 10-05-2006, 10:25 AM

Alternative in Python

Code:

#!/usr/bin/python
data = open("file1.txt").readlines()
file1 = ''.join(data).replace("\n","") #one;two;three;
for lines in open("file2.txt"):
 	lines = lines.strip()
 	if "BLAH" in lines:
 		print lines.replace("BLAH", file1 )
 	else:
 		print lines

Output:

Code:

 
line1
line2 one;two;three;
line3

Tinkster · 10-05-2006, 01:03 PM

Or awk

Code:

BEGIN{
  while (getline < "file1.txt" >0){
    cat = cat $0
  }
}

{
   if( $0 ~ /BLAH/ ){gsub( /BLAH/, cat )}; print
}

Cheers,
Tink

pete1234 · 10-05-2006, 01:25 PM

This seems to work with sed

Code:

#!/bin/bash - 
#

FILE=`cat file1 | tr -d '\n'`
PATTERN=BLAH

sed -i -e "s/$PATTERN/$FILE/" file2