Find keywords, and append at the end of line

Shell Programming and Scripting
1

Task: Find keywords in each line, and append at the end of line; if not found in the line, do nothing.

the code is wrong. how to make it work. thanks a lot.

cat keywords.txt | while read line; do

        awk -F"|" '{if (/$line/) {print $0"$line , ";} else print;}' outfile.txt > tmp

        mv -f tmp outfile.txt
done

outfile.txt content look like this:

title1|content1|keywords... if keywords found in title1 or content1

keywords.txt content look like this: one keyword each line.

keyword1
keyword2
keyword3
2

Please provide sample fileS and the desired output (using code tags).

3

anything not clear buddy?

4

just a guess, pal!

awk -F'|' 'FNR==NR{keys[$0];next} {for(i in keys) {if ($1==i) $0=$0 OFS i; if ($2==i) $0=$0 ((NF>2)? " ":OFS) i}}1' OFS='|' keywords.txt outfile.txt
5

no good

6

ok, thanks for sharing and for being thorough!

7

Give us sample data in outfile.txt and expected output, tmp
Please provide few rows in each file

8

only two files, tmp is not necessary

keywords.txt
world
we
are
loop it

outfile.txt
we damn world|this is it, this is it. loop it.|
let's play|how about that?|
you are good, just loop it.|Please provide few rows in each file|

expected output
we damn world|this is it, this is it. loop it.|world, we, loop it,
let's play|how about that?|
you are good, just loop it.|Please provide few rows in each file|are, loop it,
9 
awk 'NR == FNR{a[NR] = tolower($0); n = NR; next}
  {out = $0;
  gsub("[[:punct:]]", " ", $0);
  tolower($0);
  for(i = 1; i <= n; i++)
    {if($0 ~ a) out = (out a ",")};
  print out}' keywords.txt outfile.txt
10 
awk -F'|' 'FNR==NR{keys[$0];next} {for(i in keys) {if ($1~i) $0=$0 ((NF>3)? ",":OFS) i;if ($2~i) $0=$0 ((NF>3)? ",":OFS) i}}1' OFS='|' keywords.txt outfile.txt