paste writes to standard output lines consisting of sequentially corresponding lines of each given file, separated by a TAB character. Standard input is used for a file name of ‘-’ or if no input files are given.
For example:
$ cat num2 1 2 $ cat let3 a b c $ paste num2 let3 1 a 2 b c
Synopsis:
paste [option]... [file]...
The program accepts the following options. Also see Common options.
$ paste -s num2 let3 1 2 a b c
$ paste -d '%_' num2 let3 num2 1%a_1 2%b_2 %c_
An exit status of zero indicates success, and a nonzero value indicates failure.