paste: Merge lines of files
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
paste [option]… [file]…
For example, with:
$ cat num2 1 2 $ cat let3 a b c
Take lines sequentially from each file:
$ paste num2 let3 1 a 2 b c
Duplicate lines from a file:
$ paste num2 let3 num2 1 a 1 2 b 2 c
Intermix lines from standard input:
$ paste - let3 - < num2 1 a 2 b c
Join consecutive lines with a space:
$ seq 4 | paste -d ' ' - - 1 2 3 4
The program accepts the following options. Also see Common options.
Paste the lines of one file at a time rather than one line from each file. Using the above example data:
$ paste -s num2 let3 1 2 a b c
Consecutively use the characters in delim-list instead of TAB to separate merged lines. When delim-list is exhausted, start again at its beginning. Using the above example data:
$ paste -d '%_' num2 let3 num2 1%a_1 2%b_2 %c_
Delimit items with a zero byte rather than a newline (ASCII LF). I.e., treat input as items separated by ASCII NUL and terminate output items with ASCII NUL. This option can be useful in conjunction with ‘perl -0’ or ‘find -print0’ and ‘xargs -0’ which do the same in order to reliably handle arbitrary file names (even those containing blanks or other special characters).
An exit status of zero indicates success, and a nonzero value indicates failure.