Now I use RHEL every day and have done so for several years and I have certain processes for doing things, and commands that I use all the time. Below is a list of information/commands that I just never used or are not familar with that I have run across in my search for test prep information.
- touch /etc/forcefsck, forces a filesystem check at next reboot.
- chattr – change file attributes, like chattr +i write protects a file
- ntsysv -gui utility for managing startup services]
- grub-install /dev/sda – reinstalls grub, do a –recheck first however
- mdamd – use to manage software raid
- /proc/mdstat – shows status of md devices
- labelfs – used to label filesystems
- system-config-network – gui for changing network configs
- system-config-printer – gui for setting up printers
- at, atq, atrm – schedule a one time job, view & remove jobs
yum groupinstall "x window system" - installs x
- switchdesk gnome – sets gnome as default x window manager
- squid -z – creates the disk space needed for squid proxy
- sestatus -v – shows selinux status
- system-config-selinux – gui for config of selinux