How can I merge the contents of 2 text files, in Unix?

Question

I need to combine contents of 2 text files, word by word.

The script takes every word from file 1 and combines with file 2. it adds all the combined words in file 3.

Example:

File1        File2         
WordA1       WordB1
WordA2       WordB2
WordA3       WordB3

Output: WordA1 WordB1 WordA2 WordB2 WordA3 WordB3

How can I accomplish this? Is this possible with the cat command?

Answer 1

Try doing this :

paste file1 file2

If you want it on only one like :

paste file1 file2 | sed -n '2,$p' | paste -sd ' '

Answer 2

cat file1 file2 > outputfile.txt

Answer 3

[max@localhost ~]$ cat file1
wordA1
wordA2
wordA3

[max@localhost ~]$ cat file2
wordB1
wordB2
wordB3

[max@localhost ~]$ paste -s file1 file2 > file3
[max@localhost ~]$ cat file3 
wordA1  wordA2  wordA3
wordB1  wordB2  wordB3