search command in linux history code example

Example 1: command line history search

Ctrl+R
 - Start typing a command and the most recent matching command will appear
 - Press Ctrl+R again to cycle through results
 - Press Enter or Tab to select the result

Example 2: shell search history

sudo add-apt-repository ppa:ultradvorka/ppa && sudo apt-get update && sudo apt-get install hstr && hstr --show-configuration >> ~/.bashrc && . ~/.bashrc