NerdTree command cheatsheet

Install NerdTree :

ctrl+ww move cursor back to list directory
gt next tab
gT previous tab

Enable html syntax:

au BufReadPost *.ezt set syntax=html

Nerdtree setup alike:

let g:netrw_banner = 0
let g:netrw_liststyle = 3
let g:netrw_browse_split = 4
let g:netrw_altv = 1
let g:netrw_winsize = 25
augroup ProjectDrawer
  autocmd VimEnter * :Vexplore
augroup END

Open vertical term :vert term
Resize vertical term :vert resize +5

Alembic set autogenerate model

Alembic create revision autogenerate with comment:

$ alembic -c dev.ini revision --autogenerate -m "adding some tables"

Check upgrade script:

$ cat alembic/versions/

Alembic upgrade metadata with version

$ alembic -c dev.ini upgrade 123xxx

Alembic upgrade metadata with latest version

$ alembic -c dev.ini upgrade head


Install MySQL on Ubuntu And Skip the Password Prompt

When you install mysql on Ubuntu (I use 16.04), it requires you to fill the admin password for the first time before finishing the installation. This prompt will wait the user input until you fill the password.

This trick is very helpful if you want to install mysql in Dockerfile, and skipping the password prompt:

$ export DEBIAN_FRONTEND=noninteractive
$ sudo -E apt-get -q -y install mysql-server

Install Arcanist Phabricator on Fedora 28

$ mkdir $HOME/arctools
$ cd $HOME/arctools
$ git clone
$ git clone
$ mv $HOME/arctools /opt
$ echo 'export PATH=$PATH:/opt/arctools/arcanist/bin' >> ~/.bash_profile
$ source ~/.bash_profile
$ sudo dnf install php php-json
$ arc --help
$ arc install-certificate
# and follow the rest of the instruction from the arc