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→INVESTIGATION 3: ALIASES / COMMAND HISTORY
# Issue the following Linux command: <span style="color:blue;font-family:courier;font-weight:bold">history</span><br><br>What do you notice?<br><br>
# Press an exclamation mark ! immediately followed by the number by one of those commands listed in the history list and press <span style="color:blue;font-family:courier;font-weight:bold">ENTER</span><br><br>What happened?<br><br>
# Type the following: <span style="color:blue;font-family:courier;font-weight:bold">!una</span> and press <span style="color:blue;font-family:courier;font-weight:bold">ENTER</span><br><br># x
