1. You wish to create a link to the /data directory in bob's home directory so you issue the command ln /data /home/bob/datalink but the command fails. What option should you use in this command line to be successful.
Use the -F option
In order to create a link to a directory you must use the -F option.
The whatis command displays a summary line from the man page for the specified command in Linux.
The which command searches your path until it finds a command that matches the command you are looking for and displays its full path in Linux OS.
The zcat utility allows you to examine the contents of a compressed file much the same way that cat displays a file.
The SYS user owns the data dictionary. The SYS and SYSTEM users are created when the database is created.
tail -15 dog cat horse
The tail utility displays the end of a file. The -15 tells tail to display the last fifteen lines of each specified file.