What command would you type to change the ownership of somefile.txt from Ralph to tony?
Under the bash shell which is the most appropriate place to set environment variables that apply to all users?
When you downloaded a kernel patch from the Internet, the name you clicked on was kernel-patch-2.4.4-66.i386.tar.gz. The file that was downloaded is kernel-patch-2.4.4-66.i386.tgz. Which of the following commands will unarchive this patch from the /tmp directory?
As the developers in your company work on the newest security software, Antiterror, different versions of the beta are being released weekly. The current version, antiterror-7, is located in the /opt/bin/antiterror-7 directory. Later versions will be released in parallel directories; for example, the next version will be located in the /opt/bin/antiterror-8 directory. Everyone who is testing this software is running the /opt/test/antiterror command. Which of the following actions would ensure that the testers get the latest version of the software next week?
You add the following line to the /etc/passwd file mary12250Mary Jones/home/mary/bin/bash a
and use the passwd command to change her password. You also create her home directory. However, when Mary tries to log in, the login fails. What is the problem?
Assume that you have just logged on as a regular user. Which of the following commands allows you to edit the file with user passwords associated with the Shadow Password Suite?
Which of the following umask values will result in files with rw-r----- permissions?