Using Symbolic Links

45 minutes
  • 3 Learning Objectives

About this Hands-on Lab

In this hands-on lab, we will practice using symbolic links. Understanding and using symbolic links is a fundamental skill for Linux system administration.

Learning Objectives

Successfully complete this lab by achieving the following learning objectives:

Create the ~/ bin Directory and Add it to the PATH
  1. Make the ~/bin directory.
    mkdir bin
  2. Add ~/bin to the $PATH environment variable.
    echo 'PATH=$HOME/bin:$PATH' >> .bashrc
Create the Symbolic Links
  1. Create a symbolic link ("symlink") for rpm_verify.
    ln -s /usr/lib/rpm/rpmdb_verify bin/rpm_verify
  2. Create a symlink for rpm_dump.
    ln -s /usr/lib/rpm/rpmdb_dump bin/rpm_dump
  3. Create a symlink for rpm_load.
    ln -s /usr/lib/rpm/rpmdb_load bin/rpm_load
Test the Symbolic Links
  1. Verify that the rpm_verify symlink works.
    rpm_verify /var/lib/rpm/Packages

Additional Resources

One of your coworkers just said, “I wish I could just use rpm_verify, rpm_dump, and rpm_load to run these commands without having to do so much typing!”

Determine how to use symbolic links and the $PATH environment variable to make running these commands as easy as they’ve suggested.

The commands they are running are:

  • /usr/lib/rpm/rpmdb_verify
  • /usr/lib/rpm/rpmdb_dump
  • /usr/lib/rpm/rpmdb_load

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