Linux Note

Linux

Path

export PATH="path_paste_here":$PATH

Service

edit /etc/systemd/system/$SERVICE.service with

[Unit]
Description=<DISCRIPTION>

[Service]
Type=simple
User=<YOUR_USERNAME>
ExecStart=<PATH_TO_START>
WorkingDirectory=<PATH_TO_WORKING_DIR>
Restart=always

[Install]
WantedBy=multi-user.target

Problem

check executive location

which <COMMAND_NAME>

GNOME

Path of icon

~/.local/share/applications/

/usr/share/applications/

Tobbar colour

edit .themes/<THEME>/gnome-shell/gnome-shell.css

/* Top Bar */
panel {
  background-color: rgba(0, 0, 0, 1); //change here
  font-weight: normal;
  color: white;
  font-feature-settings: "tnum";
  transition-duration: 250ms;
  font-size: 9.75pt;
  font-weight: 400;
  height: 28px !important;
  box-shadow: 0 5px 16px rgba(0, 0, 0, 0.05);
}

C

Clang

include path

clang -v -x c -E /dev/null

Python

ModuleNotFound when module is installed with pip

import sys; print(sys.executable);

pip error: externally-managed-environment

1. remove file /usr/lib/python3.x/EXTERNALLY-MANAGED,

2. use pip's argument --break-system-packages,

3. add following lines to ~/.config/pip/pip.conf:

[global]
break-system-packages = true

SSH

ssh config file

/etc/ssh/sshd_config