When copying a large file on Linux transfer hangs at the end… And you want to f**king kill someone.

There’s an annoying bug in almost every Linux distribution I’ve worked with. When your copying a large file to usb device (pendrive etc.) it hangs at the end (I mean it haaaaaaaaaaaaangs).

I’ve found a solution that works on Elementary and Ubuntu (at least).

Simply paste this two commands in your terminal:

sudo sh -c 'echo $((48*1024*1024)) > /proc/sys/vm/dirty_bytes'
sudo sh -c 'echo $((16*1024*1024)) > /proc/sys/vm/dirty_background_bytes'

Add this to some kind of startup script and forget about transfer problems…

How to unfreeze KDE’s plasmashell?

I’m using Debian 9.4 and this freaking KDE5 is freezing very often! What you can do when your desktop stops responding? Restart computer? Use ALT+CTRL+F1…12? Nah! There’s a better solution!

Simply edit your  ~/.bash_aliases:

nano ~/.bash_aliases

And append to it:

alias restart-plasma='kquitapp5 plasmashell && kstart plasmashell'

Now whenever your plasma desktop starts trolling you, go to your console and type restart-plasma voilàDezombified!

PS. Use tilda to open console in every shitty situation you’ll get into! Simply press F12 and you’ll get nice Quake like terminal.

Feel like a ninja
Feel like a Linux ninja

How to find network device using it’s manufacturer name?

I’ve previously posted a note about finding Raspberry Pi without knowing it’s ip address. Well, basically it’s the same… Only you need to change MAC prefix to find other manufacturer. To wrap this is up, this is a command to find device by MAC prefix:

sudo nmap -sP 192.168.100.0/24 | awk '/^Nmap/{ip=$NF}/00:D0:23/{print ip}'

And here you can find actual MAC information (use CTRL+F).

Of course you need Nmap to do that! And sudo is necessary!

Beware that sometimes there might be many prefixes for one manufacturer. Also check company name precisely, for example HP is Hewlett Packard but it also can be ProCurve Networking by HP.