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Tutorial8: Links / Process Management

211 bytes added, 10:39, 25 February 2021
INVESTIGATION 1: LINKING FILES
# Use a text editor to edit the hard-linked file <span style="font-weight:bold;font-family:courier;">~/links/data-file.txt.hard.lnk</span><br>and add some lines to the bottom of this file.<br><br>
# Save your editing session and exit your text editor.<br><br>
# Issue the following Linux command: <br><span style="color:blue;font-weight:bold;font-family:courier;">cat ~/links/data-file.hard.lnk</span><br><br>What happened to this original hard-linked file?<br>What does this mean in terms of creating hard-linked files?<br><br>
# Issue the following Linux command to create a hard-linked file in your '''home''' directory:<br><span style="color:blue;font-weight:bold;font-family:courier;">ln ~/links/data-file.txt ~/data-file.hard.lnk<br><br>
# Issue the following Linux command to compare all file's i-node numbers:<br><span style="color:blue;font-weight:bold;font-family:courier;">ls -li ~/links/data-file.txt ~/links/data-file.hard.lnk ~/data-file.hard.lnk</span><br><br>What do you notice about all of those file's ''i-node'' numbers?<br><br>
# Use a text editor to edit the '''symbolic''' link file called: <span style="font-weight:bold;font-family:courier;">~/links2/text-file.sym.lnk</span><br>and add some lines to the bottom of that file.<br><br>
# Save your editing session and exit your text editor.<br><br>
# Issue the following Linux command to view the contents of the '''original''' file:<br><span style="color:blue;font-weight:bold;font-family:courier;">cat ~/links2/text-file.txt</span><br><br>What did you notice?This happened because when you edited the symbolically-linked file,<br>you were redirected (via pathname) to the original file.<br><br>
# Use a text editor to edit the original file called: <span style="font-weight:bold;font-family:courier;">~/links2/text-file.txt</span><br>and add some lines to the bottom of that file.<br><br>
# Save your editing session and exit your text editor.<br><br>
# Issue the following Linux command to view the contents of the '''symbolic''' linked file:<br><span style="color:blue;font-weight:bold;font-family:courier;">cat ~/links2/text-file.sym.lnk</span><br><br>What did you notice? What does this tell Again, when you about symbolic links?view the contents of the symbolically-linked file,<br>you are redirected (via pathname) to the original file.<br><br>
# Issue the following Linux command to check that you created those symbolic links: <br><span style="color:blue;font-weight:bold;font-family:courier;">bash /home/murray.saul/scripts/week8-check-2</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>
# Issue the following Linux command to remove the '''~/links2''' directory: <br><span style="color:blue;font-weight:bold;font-family:courier;">rm -rf ~/links2</span><br><br>
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