4.3BSD-Tahoe/usr/man/cat1/cat.0

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CAT(1)		    UNIX Programmer's Manual		   CAT(1)



NNAAMMEE
     cat - catenate and print

SSYYNNOOPPSSIISS
     ccaatt [ --bbeennssttuuvv ] file ...

DDEESSCCRRIIPPTTIIOONN
     _C_a_t reads each _f_i_l_e in sequence and displays it on the stan-
     dard output.  Thus

		    cat file

     displays the file on the standard output, and

		    cat file1 file2 >file3

     concatenates the first two files and places the result on
     the third.

     If no input file is given, or if the argument `-' is encoun-
     tered, _c_a_t reads from the standard input file.  Output is
     buffered in the block size recommended by _s_t_a_t(2) unless the
     standard output is a terminal, when it is line buffered.
     The --uu option makes the output completely unbuffered.

     The --nn option displays the output lines preceded by lines
     numbers, numbered sequentially from 1.  Specifying the --bb
     option with the --nn option omits the line numbers from blank
     lines.

     The --ss option crushes out multiple adjacent empty lines so
     that the output is displayed single spaced.

     The --vv option displays non-printing characters so that they
     are visible.  Control characters print like ^X for control-
     x; the delete character (octal 0177) prints as ^?.  Non-
     ascii characters (with the high bit set) are printed as M-
     (for meta) followed by the character of the low 7 bits.  A
     --ee option may be given with the --vv option, which displays a
     `$' character at the end of each line.  Specifying the --tt
     option with the --vv option displays tab characters as ^I.

SSEEEE AALLSSOO
     cp(1), ex(1), more(1), pr(1), tail(1)

BBUUGGSS
     Beware of `cat a b >a' and `cat a b >b', which destroy the
     input files before reading them.







Printed 7/9/88	       September 29, 1987			1