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- CAT (1)
-
- NAME
-
- cat - concatenate and print files
-
- SYNOPSIS
-
- cat [ benstuv ] [ ] [ ]
- DESCRIPTION
-
- The cat utility reads files sequentially, writing them to the
- standard output. The file operands are processed in command line
- order. A single dash represents standard input.
- The options are as follows:
- b - Implies the option but doesn't number blank lines.
- e - Implies the option, and displays a dollar sign at the
- end of each line as well.
- n - Number the output lines, starting at 1.
- s - Squeeze multiple adjacent empty lines, causing the out-
- put to be single spaced.
- t - Implies the option, and displays tab characters as as
- well.
- u - The option guarantees that the output is unbuffered.
- v - Displays non-printing characters so they are visible.
- Control characters print line [^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) fol-
- lowed by the character for the low 7 bits.
- The cat utility exits 0 on success, and >0 if an error occurs.
- BUGS
-
- Because of the shell language mechanism used to perform output
- redirection, the command will cause the original data in file1 to
- be destroyed!
- SEE ALSO
-
- head (1) , more (1) , pr (1) , tail (1)
- HISTORY
-
- A
-
- command appeared in Version 6 AT&T UNIX.
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