In Android development I occasionally need test some separated functionality. Building the whole project takes time and may causes side-effects. That’s why I use command line compiler.
Continue readingKotlin Command Line Compiler
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Author Archives: Petr Pošvic
magbo system
From xterm to Termite and back
Not long ago I heard about Termite terminal emulator. It is inspired by Vim and that’s why I wanted to try it. Sadly Debian hasn’t package so I needed build it from source.
Continue readingPython3 module logging
In Python there exists logging module. You should use it instead of print function. In this article I’ll show you how use logging in sub-modules.
Continue readingExiting i3 without mouse
By default in i3 there is a key shortcut MOD + SHIFT + e to open bar on top of your screen. If you click on Yes button, i3 terminates. But you have to use a mouse what is not comfortable. I rewrite the shortcut to use dmenu instead of the i3-nagbar.
Continue readinghere-document and here-string in Bash and Fish
In Bash there are two well-known constructs named here-document and here-string. here-document is
wc << EOF
> one two three
> four five
> EOF
2 5 24and here-string is
bc <<< 5*4Disable Google Chrome Tab Info Hover Cards
Last upgrade of Google Chrome brings new feature – Tab Hover Crads. If you want disable it, go to chrome://flags/, search Tab Hover Cards and set to Disabled.
Grub recovery after Windows update
Yesterday I updated Windows 10, BIOS and some drivers of my Dell and couldn’t run Grub, just Windows Boot Manager. I re-installed Grub from Debian recovery without succes, Windows started directly after reboot.
First fix was copy /boot/efi/EFI/debian/grubx64.efi to /boot/efi/EFI/Microsoft/Boot/bootmgrfw.efi (with backup of original file, of course) and then Grub started. But why BIOS didn’t read /boot/efi/debian/grubx64.efi?
In BIOS (Boot Sequence menu) I had 1. option “debian” and File System List was “HD(1,GPT,D6E…)” what was wrong. I deleted this option and add new one with File System List “PciRoot(0x0)/Pci(0x17,0x0)/Sata(0x2,0x0)/HD(1,GPT,D6E…)” and correct File Name “\EFI\debian\grubx64.efi” and then Grub started work.
Then I reverted back “first fix”, rename back /boot/efi/EFI/Microsoft/Boot/bootmgrfw.efi.backup to /boot/efi/EFI/Microsoft/Boot/bootmgrfw.efi and Grub starts after reboot again.
py3status
All time when I used i3 window manager I used i3status too. i3status is little bar on bottom of the screen which displays info about things I’m interested in, i.e. free disk space, IP address, volume level, date and time (+ tray icons).
Continue readingNetworkManager changes WiFi MAC address
If your WiFi is managed by NetworkManager and it has random MAC address after reboot, you can disable it in /etc/NetworkManager/NetworkManager.conf:
[device]
wifi.scan-rand-mac-address=no
[connection]
# ethernet.cloned-mac-address=permanent
wifi.cloned-mac-address=permanent[connection] section shouldn’t be necessary nor ethernet line (it is commented).
imapfilter
Tool to filtering e-mail. Can be installed via:
sudo apt install imapfilter
Example configuration in ~/.imapfilter/configu.lua:
local posvic_eu = IMAP {
server = 'mail.posvic.eu',
username = 'my@posvic.eu',
password = '',
ssl = 'ssl3',
}
local test = IMAP {
server = 'test.email.com',
username = 'my@email.com',
password = '',
ssl = 'ssl3',
}
function print_subjects(o)
for _, msg in ipairs(filter) do
mbox, uid = table.unpack(msg)
text = mbox[uid]:fetch_message()
print(string.match(text, 'Subject:[^\n]*'))
end
end
posvic_eu.INBOX:check_status()
posvic_eu.INBOX
:contain_from('beacon-monitor@post.cz')
:contain_subject('Beacon Monitor Disk')
:move_messages(posvic_eu['Trash'])
test.INBOX:check_status()
test.INBOX
:contain_from('support@2n.cz')
:contain_subject('Ticket#')
:move_messages(test['INBOX/Automat'])
test.INBOX
:contain_from('apps@crashlytics.com')
:contain_subject('Meeting Room')
:move_messages(test['INBOX/Automat'])