3 cat, read \- catenate files
23 in sequence and writes it on the standard output.
32 cat file1 file2 >file3
34 concatenates the first two files and places the result
41 reads from the standard input.
42 Output is buffered in blocks matching the input.
45 copies to standard output exactly one line from the named
47 default standard input.
48 It is useful in interactive
54 flag causes it to continue reading and writing multiple lines until end of file;
56 causes it to read no more than
60 Read always executes a single
62 for each line of input, which can be helpful when
63 preparing input to programs that expect line-at-a-time data.
64 It never reads any more data from the input than it prints to the output.
66 .B /usr/local/plan9/src/cmd/cat.c
68 .B /usr/local/plan9/src/cmd/read.c
75 on end of file or, in the
77 case, if it doesn't read
86 destroy input files before reading them.