Explain what the rot13 script does.
PR: 39044
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2020-12-20 02:59:44 +00:00
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@ -41,6 +41,7 @@
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.Sh SYNOPSIS
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.Sh SYNOPSIS
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.Nm
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.Nm
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.Op Ar rotation
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.Op Ar rotation
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.Nm rot13
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.Sh DESCRIPTION
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.Sh DESCRIPTION
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The
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The
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.Nm
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.Nm
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@ -52,6 +53,9 @@ reads from the standard input and writes to the standard output.
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The optional numerical argument
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The optional numerical argument
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.Ar rotation
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.Ar rotation
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may be used to specify a specific rotation value.
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may be used to specify a specific rotation value.
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If invoked as
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.Nm rot13 ,
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a rotation value of 13 will be used.
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.Pp
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.Pp
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The frequency (from most common to least) of English letters is as follows:
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The frequency (from most common to least) of English letters is as follows:
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.Pp
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.Pp
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