Basics

• ls dir file listing -al - with hidden files
• rm del -r to remove directory, -f = shift+del
• cp srcFile dstDir copy file to dstDir with same name, -r cp directory
• mv srcFile dstFile move or rename

System

• alias see all alias

• change alias or export permanatly

  sudo vim ~/.bashrc
  sudo vim ~/.bash_aliases
  
  #update bashrc
  source ~/.bashrc

• sudo without passward

  sudo visudo
  username ALL=(ALL) NOPASSWD:ALL

Open From Terminal

• xdg-open $file open files in graphical applications, or use urlxdg-open http://askubuntu.com/

git

• delete branch: locally git branch -D branch_name remotely:git push <remote_name> --delete <branch_name>

• git merge develop merge develop changes to current withou modifying develop

• Avoid commits on my branch interlace with other people's commit? Merge pull request without merge commits

      git checkout mybranch
      git rebase master #now all changes of master are merged into mybranches
      git checkout master
      git merge --ff-only mybranch

• check/update remote upstream: git remote -v
$ git remote add upstream https://github.com/ORIGINAL_OWNER/ORIGINAL_REPOSITORY.git

Install google pinyin in Ubuntu 16.04

1. Command line: sudo apt-get install fcitx-googlepinyin
2. System settings -> Language support -> Keyboard input method system, change to fcitx.
3. Log out log in
4. At top right, click the penguin icon -> Text entry setting
5. Click +
6. Search ‘Google’, find ‘Google Pinyin (Fcitx)’ 7, Use ‘Ctrl+space’ to switch between input methods