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→INVESTIGATION 2: EXTENDED REGULAR EXPRESSIONS
# Issue the following Linux command to check that you correctly issued<br>those ''Linux pipeline commands'' using the '''tee''' command to create those text files:<br><span style="color:blue;font-weight:bold;font-family:courier;">bash /home/murray.saul/myscripts/week9-check-3</span><br><br>If you encounter errors, then view the feedback to make corrections, and then re-run the checking script.<br>If you receive a congratulation message that there are no errors, then proceed with this tutorial.<br><br>Let's issue a Linux '''pipeline''' command using a combination of '''complex''' and '''extended''' regular expressions.<br><br>
# Issue the following Linux pipeline command:<br><span style="color:blue;font-weight:bold;font-family:courier;">ls | egrep "[a-z]{1,}.*[0-9]"</span><br><br>What did this Linux pipeline command display?<br><br>
: The '''grep''' and '''egrep''' Linux commands are NOT the only Linux commands that use regular expressions.<br>In the next investigation, you will apply regular expressions to a number of Linux commands <br>that you already learned in this course.
: You can proceed to INVESTIGATION 3<br>
