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Invoking cmp,
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Invoking cmp
The cmp command compares two files, and if they differ,
tells the first byte and line number where they differ. Bytes and
lines are numbered starting with 1. The arguments of cmp
are as follows:
cmp options... from-file [to-file [from-skip [to-skip]]]
The file name - is always the standard input. cmp
also uses the standard input if one file name is omitted. The
from-skip and to-skip operands specify how many bytes to
ignore at the start of each file; they are equivalent to the
--ignore-initial=from-skip:to-skip option.
An exit status of 0 means no differences were found, 1 means some
differences were found, and 2 means trouble.
