quick type special characters

In Linux you can use ComposeKey, setting it for example (in System settings) as RightCtrl (the right-Ctrl key). RightCtrl is better than AltGr in Italian keyboard, to keep AltGr for some characters like ‘[‘, or ‘]’, or ‘@’, or ‘#’, otherwise unaccessible.

In that way, when you type 1) first RightCtrl 2) then ^ 3) then o, you will get ô. You don’t need to press simultaneously all the keys.

To sum up, the main simbols :

  • RightCtrl+^+o = ô
  • RightCtrl+”+o = ö
  • RightCtrl+’+o = ó

linux black desktop

It’s a bug which affects only one user and not the whole graphical desktop, but only the “desktop” in a narrow sense.

A workaround can be to rename the .config folder (to something like .config.old) so that you can get anew your whole graphical desktop and then maybe you could copy (prudently) one by one your config files (from .config.old to the new .config folder).

rename identical files (with different names) in different devices

You can use a zsh script (let we call “rename-identical-files.bash”) with a code like the following

#! /bin/zsh -
zmodload zsh/stat || exit
typeset -A size_to_name

CDPATH= cd -P -- "$model_folder" || exit
for f in *(ND.); do
  stat -LA size +size -- $f &&
    size_to_name[$size]=$f &&
    print -r "# File of size $size should be named ${(q)f}"

cd $OLDPWD || exit
for f in *(ND.); do
  stat -LA size +size -- $f &&
    (($+size_to_name[$size])) &&
    [[ $f != $size_to_name[$size] ]] &&
    print -r mv -i -- ${(qq)f} ${(qq)size_to_name[$size]}
#usage:  that-script /model-folder-path

then you can go to the folder where you want rename the files and do this terminal command:

~/rename-identical-files.bash /path/to/model/folder

in this way, before executing the command, you can see what could happen afterwards. If it’s all ok, do the command:

~/rename-identical-files.bash /path/to/model/folder | sh

windows issues

In KDE Linux it could happen some issues with windows:

  1. rules not memorized: to fix it check if configurations files (tipically in ./config/ kwinrc and kwinrulesrc) have the right permissions (avoid: non access).
  2. new window below others already active: such as Clementine’s window, called from system tray, going below other windows; to fix this you have to set Focus stealing prevention in Window Behavior (the first tab of Window management in System settings) to none, as you can see in the image

    la regola da impostare.