package name for common used Linux util in Debian/Ubuntu


apt install -y procps


apt install -y iputils-ping


apt install -y telnet

Samples for setting the urls and environment for a .net core application


ASPNETCORE_URLS="http://*:9143" ASPNETCORE_ENVIRONMENT="Development" dotnet Yourproject.dll
ASPNETCORE_ENVIRONMENT="Development" dotnet run --urls "http://*:9143" --no-launch-profile

for Windows command line (cmd.exe)

setx ASPNETCORE_URLS "http://localhost:5001"
dotnet Yourproject.dll

for Windows powershell

$Env: ASPNETCORE_URLS "http://localhost:5001"
dotnet Yourproject.dll


Using dconf-editor to setup extra hot keys for the Gnome 3 desktop

The keyboard shortcuts setting in the Settings app can only support 4 workspaces. However, I want to use 8 workspaces to implement the goal of "everything in its right place". Solution:

sudo apt install dconf-editor

# Then you can do what you want to do there


By the way, my final configuration is shown below:

Ctrl + 1-8 Switch to workspace 1-8
Ctrl+Alt+1-8 Move current window to workspace 1-8 and jump to that workspace

  • Workspace 1: Chrome
  • Workspace 2: Gnome-terminal
  • Workspace 3: Rider
  • Workspace 4: WebStorm
  • Workspace 5: Ebook reader (Evince and others)
  • Workspace 6: File Manager, BitTorrent downloader,
  • Workspace 7: VMs
  • Workspace 8: Settings, Telegram, music player, misc.

Jenkins 三言两语(二)

  1. Jenkins 虽然通过ssh访问一个node来执行build或者 deploy任务,而且它也确实执行了远程机器的.bashrc 脚本,但它却刻意的抹掉了PATH 环境变量。所以在你要运行的bash脚本里再 source 一遍 /etc/profile 就有了必要。
  2. Jenkins自己的环境变量,可以在脚本里直接用,但从bash里来的环境变量,如 $?,就得用反斜线转义 \$ 符号。
  3. .bashrc 别 echo 东西,否则 Jenkins 会拒绝干活。(应该弄一台专门的机器只跑 Jenkins)

Linux TIPS collect (神奇的知识集合)

  1. http_proxy environment in sudo command: http_proxy=xxx:xxx sudo yourcommand doesn't work, you should sudo http_proxy=xxx:yyy yourcommand instead.
  2. ssh running local script: ssh [email protected] 'bash -s' <
  3. ssh running local script with paraemters: ssh [email protected] < 'bash -s' yourparam1 yourparam2 doesn't work, you should runssh [email protected] < 'bash -s' -- yourparam1 yourparam2