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history (command)
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<p>In <a href="/facts/Computing/Kghtm9fX">computing</a>, various <a href="/facts/Shell_(computing)/Sa67elS7">shells</a> maintain a record of the <a href="/facts/Command_(computing)/zUrvQbFy">commands</a> issued by the user during the current <a href="/facts/Session_(computer_science)/PRQuXhIL">session</a>. The history command works with the <a href="/facts/Command_history/nnyw8DFc">command history</a> list. When the command is issued with no options, it prints the history list. Users can supply options and arguments to the command to manipulate the display of the history list and its entries. The operation of the history command can also be influenced by a shell's <a href="/facts/Environment_variables/WxkrJQpP">environment variables</a>. For example, an environment variable can be set to control the number of commands to retain in the list. </p>