Question

Input of the text file

A | 1 | def | 1432
A | 1 | ffr | 1234
A | 1 | dfs | 3241
A | 2 | asf | 2213

Desired Output

A | 1 | def 1432,ffr 1234,dfs 3241
A | 2 | asf 2213

Merging values related to 2nd column in a single row

Answer 1

And here is a Perl attempt:

perl -F'\s+\|\s+' -alne '
$a{$F[1]} .= "$F[2] $F[3],";
END {
  $_ = "A | $_ | $a{$_}", s/,$//, print for sort keys %a;
}' FILE