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=UNIX / LINUX FILE MANAGEMENT CONCEPTS=
{{Admon/important|IMPORTANT: The due date for this tutorial has been extended to Monday, September 26, 2022 at 11:59pm EST.|This extension is for all sections of ULI101.}}
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===Main Objectives of this Practice Tutorial===
# Issue a Linux command to confirm that you are now located in your home directory.<br><br>Although we will teach you how to '''remove''' directories and their contents in another investigation,<br>let's remove the created directory structure' and '''recreate''' the same directory structure<br>using just <u>one</u> command using pathnames.<br><br>
# Issue the following Linux command to remove all of the directories that you have created:<br><span style="color:blue;font-weight:bold;font-family:courier;">rm -r uli101xx acp100xx xyz100xx</span><br><br>
# Issue a Linux command to confirm that the '''uli101xx''', '''acp100xx''' and '''xyz100xx''' directories have been removed.<br><br>
# Issue the following single Linux command to create the entire directory structure:<br><span style="color:blue;font-weight:bold;font-family:courier;">mkdir -p uli101xx/notes uli101xx/tutorials uli101xx/samples acp100xx xyz100xx</span><br><br>'''NOTE:''' The '''-p''' option allows "parent" directories to be automatically created first to then create their subdirectories.<br><br>
# Issue the following Linux command to confirm that all of the directories have been created:<br><span style="color:blue;font-weight:bold;font-family:courier;">ls -ld uli101xx/ uli101xx/notes uli101xx/tutorials uli101xx/samples acp100xx xyz100xx</span>
<table align="right"><tr valign="top"><td>[[Image:script-check-1.png|thumb|right|250px|If all all check checks pass, then user performed task correctly and can continue.]]</td><td>[[Image:script-check-2.png|thumb|right|450px|If there is a warning, then feedback is provided to user to correct and re-run checking script.]]</td></table>
To check for mistakes, a '''shell script''' has been created to check your work. If the checking shell script detects an '''error''', then it will provide feedback and offer constructive feedback on how to fix that problem so you can re-run the checking shell scripts until your work is correct.