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How to provide information about peripherals with dmesg

Posted 10-19-2021 at 01:51 AM by ondoho
Updated 06-23-2022 at 12:54 AM by ondoho (added -T option to dmesg (human-readable timestamps))

You want to see how your Linux system reacts to a certain peripheral being plugged in (smartphone, monitor, USB stick etc.).
dmesg can provide that information, but one needs to separate it from previous messages.
Here's how:

Make sure the device in question is unplugged.
Open a terminal, maximise it.
Enter dmesg -Tw (wait for new messages).
Some systems require elevated privileges for dmesg, if so prepend sudo or become superuser first.
After dmesg -Tw spat out lots

...

ondoho

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How to use CODE Tags for Code and Command Output

Posted 08-23-2021 at 01:54 AM by ondoho

Let's say you have this output:

$ df -h
Filesystem Size Used Avail Use% Mounted on
udev 3.9G 0 3.9G 0% /dev
tmpfs 789M 2.7M 787M 1% /run
/dev/sda8 9.8G 6.9G 2.5G 74% /

You will notice that the formatting is messed up, it looked much nicer in your terminal!

Instead, you should surround the text with code tags:

[CODE]
$ df -h
Filesystem Size Used...

ondoho

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How to search the WWW for solutions to Linux problems

Posted 11-30-2020 at 12:53 AM by ondoho
Updated 01-28-2021 at 01:27 AM by ondoho

Quote:

I'm a relative newbie here, and would need elementary instructions in order to fix anything you suggested.

Open the web page of a search engine that does not wrap you in a bubble. For now, https://duckduckgo.com/ will do
Enter relevant parts of the error message received (*), usually prepended by "linux" or the name of the distro (for Mint, you can prepend Ubuntu) - in this case, I would choose Ubuntu The following signatures couldn't be verified because the public key is not available.

...

ondoho

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uMatrix FTW!

Posted 05-31-2019 at 04:55 AM by ondoho

uMatrix has replaced at least 3 different addons (cookie control, noscript and request policy) and also offers adblocking (which i still take care of via /etc/hosts).
(this is me on firefox)
For being so powerful, it is comparatively simple to use. seriously.
A very quick howto on my personal blog.

A Palemoon-compatible fork exists.

ondoho

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Use youtube-dl to bulk download music from weblinks

Posted 04-14-2019 at 04:47 AM by ondoho
Updated 04-14-2019 at 04:49 AM by ondoho

youtube-dl can download much more than just youtube!

it has options to download video, then extract the audio only, or to download audio audio-only sites (soundcloud, bandcamp etc.)

for a long time i've been using a little script to download music with youtube-dl, straight into my Music folder.

youtube-dl can extract a lot of info from the download, add tags to the file, and generate a suitable download path and filename for one or multiple files....

ondoho

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