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Glynis Shrake

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Jan 2, 2024, 10:04:00 PM1/2/24

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Due to historical and backwards compatibility reasons, certain bare option-likestrings cannot be passed to echo as non-option arguments.It is therefore not advisable to use echo for printing unknown orvariable arguments. The printf command is recommended as a moreportable and flexible replacement for tasks historically performed byecho. See printf: Format and print data.

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POSIX does not require support for any options, and saysthat the behavior of echo is implementation-defined if anystring contains a backslash or if the first argument is -n.Portable programs should use the printf command instead.See printf: Format and print data.