Unix |
Unix v7 |
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cat(1) |
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cat − catenate and print
cat [ −u ] file ...
Cat reads each file in sequence and writes it on the standard output. Thus
cat file
prints the file and
cat file1 file2 >file3
concatenates the first two files and places the result on the third.
If no file is given, or if the argument ’−’ is encountered, cat reads from the standard input. Output is buffered in 512-byte blocks unless the standard output is a terminal or the −u option is present.
pr(1), cp(1)
Beware of ’cat a b >a’ and ’cat a b >b’, which destroy input files before reading them.
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cat(1) | ![]() |