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BSD 2.11 - man page for cat (bsd section 1)

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CAT(1)											   CAT(1)

NAME
       cat - catenate and print

SYNOPSIS
       cat [ -u ] [ -n ] [ -s ] [ -v ] file ...

DESCRIPTION
       Cat reads each file in sequence and displays it on the standard 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 encountered, cat reads from the stan-
       dard input file.  Output is buffered in the block size recommended by stat(2)  unless  the
       standard  output  is a terminal, when it is line buffered.  The -u option makes the output
       completely unbuffered.

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

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

       The  -v option displays non-printing characters so that they are visible.  Control charac-
       ters 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 -e option may be given with the -v option, which  displays
       a `$' character at the end of each line.  Specifying the -t option with the -v option dis-
       plays tab characters as ^I.

SEE ALSO
       cp(1), ex(1), more(1), pr(1), tail(1)

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

4th Berkeley Distribution		   May 5, 1986					   CAT(1)


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