Searching your command history on macOS terminal

What is the shortcut to search my command history in macOS terminal?

For how long is the history available for searching? Where is it stored?

Solution

How about using Ctrl+R for searching on the Terminal Utility in Mac for searching on the command history,

dudeOnMac: freddy$ whoami
freddy
(reverse-i-search)`who': whoami

Well for controlling how long the history would be retained that depends on a few shell environment variables, HISTFILESIZE which is nothing but number of lines of history you want to retain. Set a huge value for it in .bash_profile for it to take effect

HISTFILESIZE=10000000

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