access
file permissions
modifying permissions
ownership permissions
process permissions
setgid set group id
setuid set user id
sticky bit
umask
booting
boot process bios
boot process bootloader
boot process init
boot process kernel
boot process overview
command line
alias command
cat command
change directory cd command
copy cp command
exit command
file command
find command
help command
history command
less command
list directories ls command
make directory mkdir command
man command
move mv command
print working directory pwd command
remove rm command
the shell
touch command
whatis command
devices
dd command
dev directory
device names
device types
listing devices
sysfs
udev
dns
dns components
dns process
dns setup
dns tools
etc hosts
what is dns
filesystem
anatomy of a disk
creating filesystems
disk partitioning
disk usage
etc fstab file system table
filesystem hierarchy
filesystem repair
filesystem types
inodes
mounting and unmounting filesystems
swap space
symlinks
getting started
arch linux
choosing a linux distribution
debian
fedora
gentoo
linux history
linux mint
openSUSE
red hat enterprise linux
ubuntu
home page
init
power states
systemd goals
systemd overview
sysv overview
sysv services
upstart jobs
upstart overview
kernel
kernel installation
kernel location
kernel modules
kernel overview
kernel privilege levels
system calls
logging
authentication logging
general logging
kernel logging
managing log files
syslog
system logging
network configuration
arp command
dhclient
network interfaces
network manager
route
network fundamentals
application layer
dhcp overview
link layer
network addressing
network basics
network layer
osi model
tcp ip model
transport layer
network sharing
network file sharing
nfs network file share
rsync
samba
simple http server
network troubleshooting
icmp
netstat
packet analysis
ping
traceroute
packages
compile source code
compressed archives tar
package dependencies
package install tools
package management systems
package repositories
software distribution
process utilization
continuous monitoring
cpu monitoring
cron jobs
io monitoring
memory monitoring
process threads
tracking processes lsof fuser
tracking processes top
processes
controlling terminal
job control
killing processes
monitor processes ps command
proc filesystem
process creation
process details
process niceness
process signals
process states
process termination
routing
bgp border gateway protocol
distance vector protocols
link state protocols
path of a packet
routing protocols
routing table
what is a router
subnetting
classless interdomain routing cidr
ipv4
ipv6
nat network address translation
subnet math
subnets
subnetting cheats
text fu advanced
emacs buffer navigation
emacs editing
emacs exiting and help
emacs manipulate files
emacs text editor
regular expressions regex
text editors vim or emacs
vim editing
vim inserting appending text
vim navigation
vim saving and exiting
vim search patterns
vim text editor
text fu
cut command
env environment
expand unexpand command
grep command
head command
join split command
nl wc command
paste command
pipe tee redirect
sort command
stderr standard error redirect
stdin standard in redirect
stdout standard out redirect
tail command
tr translate command
uniq unique command
user management
etc group file
etc passwd file
etc shadow file
root user
user management tools
users and groups
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