<div dir="ltr">OK, I have the final solution. First, we should really write to <font face="monospace">"nul:"</font> (with single or double quotes and a colon), as Philip wrote and Zdeněk confirmed. Second, line (<a href="https://tug.org/svn/texlive/trunk/Master/tlpkg/TeXLive/TLUtils.pm?revision=61960&view=markup#l4083">https://tug.org/svn/texlive/trunk/Master/tlpkg/TeXLive/TLUtils.pm?revision=61960&view=markup#l4083</a>)<div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><font face="monospace">my $warg = (win32() ? "-w %{url_effective} " : "-w '%{url_effective}' ");</font></blockquote><div><br></div><div><b>should have quotes</b> also around the first <font face="monospace">%{url_effective}</font> (it works fine without them with recent curl shipped with Windows, but may fail with various curl versions, e.g. that shipped with R/rtools40, in my case). The thing is <font face="monospace">%url_effective</font> is returned as $url, not any mirror. Maybe the ifelse is not necessary after all?</div><div><br></div><div>Best,</div><div>Jan</div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">čt 10. 2. 2022 v 12:48 odesílatel Jan Netík <<a href="mailto:netikja@gmail.com">netikja@gmail.com</a>> napsal:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">I have some news. Found out that in the standard PowerShell or CMD in Windows, there is no problem at all. I use tlmgr from R or RStudio terminal pane (which should use cmd.exe). If you have R installed, try to run tlmgr command in system2(). Furthermore, I tweaked the TLUtils.pm a bit to see what is going on step by step, with a few sleep():<div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><font face="monospace">sub query_ctan_mirror_curl {<br> my $max_trial = 3;<br> my $warg = (win32() ? "-w %{url_effective} " : "-w '%{url_effective}' ");<br> for (my $i = 1; $i <= $max_trial; $i++) {<br> # -L -> follow redirects<br> # -s -> silent<br> # -w -> what to output after completion<br> my $cmd = "$::progs{'curl'} -Ls "<br> . "-o " . nulldev() . " "<br> . $warg<br> . "--connect-timeout $NetworkTimeout "<br> . "--max-time $NetworkTimeout "<br> . $TeXLiveServerURL;<br> ddebug("query_ctan_mirror_curl: cmd: $cmd\n");<br> debug("\n\n\n____this cmd wil be run in 10 sec:\n$cmd\n________");<br> sleep(10);<br> my $url = `$cmd`;<br> debug("____nul file should appear now____\n");<br> debug("____url was: $url ______\n");<br> debug("____sleep now for 20 sec______\n");<br> sleep(20);<br> if (length $url) {<br> # remove trailing slashes<br> $url =~ s,/*$,,;<br> ddebug("query_ctan_mirror_curl: returning url: $url\n");<br> return $url;<br> }<br> sleep(1);<br> }<br> return;<br>}</font><br></blockquote><div><br></div><div> In system shell, URL reads proper mirror URL, in RStudio or with system2 it reads <font face="monospace">%url_effective</font>. Pretty interesting.</div><div><br></div><div>JN</div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">čt 10. 2. 2022 v 11:11 odesílatel Zdenek Wagner <<a href="mailto:zdenek.wagner@gmail.com" target="_blank">zdenek.wagner@gmail.com</a>> napsal:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">As Philip wrote, the null device should be nul: with a colon, it is<br>
consistent with drive letters. It probably used to work without the<br>
colon in previous versions and has been changed recently. I have only<br>
Windows XP and Windows 7 thus I cannot check whether -O nul: helps.<br>
<br>
Zdeněk Wagner<br>
<a href="http://ttsm.icpf.cas.cz/team/wagner.shtml" rel="noreferrer" target="_blank">http://ttsm.icpf.cas.cz/team/wagner.shtml</a><br>
<br>
čt 10. 2. 2022 v 11:01 odesílatel Jan Netík <<a href="mailto:netikja@gmail.com" target="_blank">netikja@gmail.com</a>> napsal:<br>
><br>
> Interestingly, under Windows 11, when I run `wget <a href="http://ctan.org" rel="noreferrer" target="_blank">ctan.org</a> -O nul` in CMD with wget.exe shipped with texlive, I got no nul file. JN<br>
><br>
> čt 10. 2. 2022 v 10:25 odesílatel Philip Taylor (Royal Holloway) <<a href="mailto:P.Taylor@rhul.ac.uk" target="_blank">P.Taylor@rhul.ac.uk</a>> napsal:<br>
>><br>
>> On 10/02/2022 00:38, Norbert Preining wrote:<br>
>> > ..<br>
>> > Siep, anyone on Windows, can you confirm that a "nul" file is generated<br>
>> > when calling wget -O nul ... ?<br>
>><br>
>> Not here, not under Windows 7. But I believe that the "null" device<br>
>> should actually be specified as "nul:", not just "nul". As in "con:".<br>
>> etc. Maybe try adding the colon.<br>
>><br>
>><br>
>><br>
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