What does the fourth field in /etc/passwd contain?
The Group ID number assigned as the primary group for the user account named on that line.
The Linux command used to format a Linux ext3 hard disk partition is:
Why should you not use a standard text editor to add users to /etc/passwd.
You can create typographic errors; another system admin may be editing the file across the network; you can’t easily perform all the related functions like copying /etc/skel and creating a home directory, which the utilities take care of.
Which of the following is an acceptable way to create a new user account:
b. Use the redhat-config-users utility in Red Hat Linux.
The fdisk utility is used to:
c. Establish partitions of the correct type to hold a Linux file system.
The df utility provides information about which one of the following:
c. File system capacity, device name, and percentage used status
Describe the effect of the defaults options in a configuration line of the /etc/fstab file.
See the last line of Table 8-4.
Describe at least four fields of information provided by the command ps auxf.
The user who started the process, PID, percentage of CPU and memory used by the process, amount of memory used, terminal on which process was started, current status, start time, total CPU time used, command executed to launch the process, parent process tree, and a couple of others that have not been explained (e.g. Resident Set Size—RSS. See the ps man page for details.)
Describe the main advantage of having swap space located on a hard disk separate from the Linux data partitions.
The kernel is then not competing with regular programs for access to the hard disk—two disks can operate somewhat independently, increasing throughput.
List two reasons why a user account might need to be disabled.