paste - merge same lines of several files or subsequent lines of one
paste file1 file2 ...
paste -d list file1 file2 ...
paste -s [-d list] file1 file2 ...
In the first two forms, paste concatenates corresponding lines of the
given input files file1, file2, etc. It treats each file as a column
or columns in a table and pastes them together horizontally (parallel
merging). In other words, it is the horizontal counterpart of cat(1)
which concatenates vertically; i.e., one file after the other. In the
-s option form above, paste replaces the function of an older command
with the same name by combining subsequent lines of the input file
(serial merging). In all cases, lines are glued together with the tab
character, or with characters from an optionally specified list.
Output is to standard output, so paste can be used as the start of a
pipe, or as a filter if - is used instead of a file name.
paste recognizes the following options and command-line arguments:
-d Without this option, the new-line characters of all but
the last file (or last line in case of the -s option)
are replaced by a tab character. This option allows
replacing the tab character by one or more alternate
characters (see below).
list One or more characters immediately following -d replace
the default tab as the line concatenation character.
The list is used circularly; i.e., when exhausted, it
is reused. In parallel merging (that is, no -s
option), the lines from the last file are always
terminated with a new-line character, not from the
list. The list can contain the special escape
sequences: \n (new-line), \t (tab), \\ (backslash), and
\0 (empty string, not a null character). Quoting may
be necessary if characters have special meaning to the
shell. (For example, to get one backslash, use -
-s Merge subsequent lines rather than one from each input
file. Use tab for concatenation, unless a list is
specified with the -d option. Regardless of the list,
the very last character of the file is forced to be a
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- Can be used in place of any file name to read a line
from the standard input (there is no prompting).
LC_CTYPE determines the locale for the interpretation of text as
single- and/or multi-byte characters.
LC_MESSAGES determines the language in which messages are displayed.
If LC_CTYPE or LC_MESSAGES is not specified in the environment or is
set to the empty string, the value of LANG is used as a default for
each unspecified or empty variable. If LANG is not specified or is
set to the empty string, a default of "C" (see lang(5)) is used
instead of LANG.
If any internationalization variable contains an invalid setting,
paste behaves as if all internationalization variables are set to "C".
International Code Set Support
Single- and multi-byte character code sets are supported.
These commands return the following values upon completion:
0 Completed successfully.
>>>>0 An error occurred.
List directory in one column:
ls | paste -d" " -
List directory in four columns
ls | paste - - - -
Combine pairs of lines into lines
paste -s -d"\t\n" file
pr -t -m... works similarly, but creates extra blanks, tabs and new-
lines for a nice page layout.
too many files Except for the -s option, no more than
OPEN_MAX - 3 input files can be specified
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paste was developed by OSF and HP.
cut(1), grep(1), pr(1).
paste: SVID2, SVID3, XPG2, XPG3, XPG4, POSIX.2
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