There is also another command 'paste'. Example: Created two files (1.txt and 2.txt) [efg@fedori ~]$ cat 1.txt file1: line1 file1: line2 [efg@fedori ~]$ ca

There is also another command 'paste'. Example: Created two files (1.txt and 2.txt) [efg@fedori ~]$ cat 1.txt file1: line1 file1: line2 [efg@fedori ~]$ cat 2.txt file2: line1 file2: line2 In order to merge the lines of these two files we can use paste: [efg@fedori ~]$ paste 1.txt 2.txt file1: line1 file2: line1 file1: line2 file2: line2 Also check out 'man fold'