Check output device is a terminal: Difference between revisions
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Thundergnat (talk | contribs) (Rename Perl 6 -> Raku, alphabetize, minor clean-up) |
Thundergnat (talk | contribs) m (Fix Perl 6 -> Raku calling conventions) |
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{{works with|Rakudo|2015.12}} |
{{works with|Rakudo|2015.12}} |
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The .t method on a filehandle tells you whether it's going to the terminal. Here we use the note function to emit our result to standard error rather than standard out. |
The .t method on a filehandle tells you whether it's going to the terminal. Here we use the note function to emit our result to standard error rather than standard out. |
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<pre>$ |
<pre>$ raku -e 'note $*OUT.t' |
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True |
True |
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$ |
$ raku -e 'note $*OUT.t' >/dev/null |
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False</pre> |
False</pre> |
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