In step one, we created whoami.sh. It is similar to the whoami command, but different because we do not print the $USER variable, but rather argument 0 (arg0, as its typically known) or $0. In laymen's terms, we are printing out the name used to execute the code or script.
When we execute whoami.sh, it prints to the console:
$ bash whoami.sh I was ran as: whoami.sh
To create a symbolic soft link, we use ln with the -s flag (for symbolic mode). The ln command expects to be executed in this way: $ ln -s originalFileToBeLinkedTo newFileToLinkToOldFile.
As we can see in the following code, executing ghosts-there-be.sh runs the code in whoami.sh, but arg0 is ghosts-there-be.sh. Then, when the ls command is ran with the -l -a flags ...
