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Questions - ifconfig

translate pcregrep into Perl one-liner

I need to find all active network interfaces on new macOS. That means the following one-liner with pcregrep will not work: ifconfig | pcregrep -M -o '^[^\t:]+(?=:([^\n]|\n\t)*status: active)' because...
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Marek Stepanek

perl

regex-lookarounds

ifconfig

pcregrep

Votes: 0

Answers: 3

Latest Answer

You can use perl -0777 -nE 'say "$&" while /^[^\n\r\t:]+(?=:(?:.*\R\t)*status:\h+active)/gm' See the regex test. Here, -0777 slurps the file so that a regex could match multiline text s...
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Wiktor Stribiżew

MDNS not advertising the network interface after network restart in systemd

In systemd, MDNS (avahi-daemon) stops broadcasting the network interface after the network restart. However, for the same scenario, in system init, MDNS will work perfectly normal. Tried: Changed the...
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KEVIN CHEN

embedded-linux

systemd

mdns

ifconfig

avahi

Votes: 0

Answers: 1

Latest Answer

I am so glad that I have it figured out. The reason why the MDNS stopped broadcasting is because the interface didn't properly restart. In systemd, after the network restarts, it requires a reload of ...
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KEVIN CHEN

Error: pandoc version 1.12.3 or higher is required and was not found (see the help page ?rmardown::pandoc_available)

I am working in RStudio Cloud and am unable to knit markdowns, with this resulting message: Error: pandoc version 1.12.3 or higher is required and was not found (see the help page ?rmarkdown::pandoc_a...
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IceJ14

r

rstudio

pandoc

ifconfig

Votes: 0

Answers: 0

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