Linux Commands
alias	Alias
apt	Advanced Package Tool apt install apt-get update && apt-get upgrade apt-get update apt-get upgrade apt-get install motion apt-get install mplayer chromium-browser apt-get remove mplayer(leaves conf files) apt-get purge mplayer(uninstall package & remove conf files) apt-get autoremove apt-get clean apt-get dist-upgrade apt-cache search kde apt-cache search -n kde apt-cache search -n ^kde apt-cache showpkg kde-full
bzip2	bzip2
cal	Device Files
cat	Configuration Files The linux command cat - to concatinate files to standard output -A --show-all -b number all nonempty output lines, starting with one -e -E -n -number -s -squeeze-blank -T -u -v
cd	Home Folders
chmod	Change file permissions
chown	Used to change the user or group that owns a file
comm	The linux command comm - finds identical lines - comm file1 file2
cp	Copy
date	Optional Packages
diff	Kernel & Process Files The linux command diff - compares files and finds differences - diff file1 file 2
dmesg	Root Home Directory
du	Application State Files
emacs	System Administration Binaries
find	SELinux Virtual File System The linux command find - slow leniar searching function
free	Service Data
grep	The linux command grep - searches strings of text in files grep "sometext" *
groupadd	Temporary Files
groupdel	User Binaries & Read-Only Data
groupmod
gzip
head
hello
ifconfig	temporarary IP address assignment sudo ifconfig ens33 192.168 netmask 255.255
ifdown	bring down ens33 - sudo ifdown ens33
ip
kill
less	The search function, newer, more features
ln	Creates links between files
locate
ls	lists content of directory
make
man
mkdir
more
mount	mount a remote file system as a directory
mtr
mv	rename a file or move a file
nano
netstat	Linux Netstat Command This command will reveal if aplications are listening for network connections. netstat -g Displays the multicast groups configured netstat -n Displays ports netstat -i Displays the interfaces configured by ifconfig netstat -s Lists a summary of activity for each protocol netstat -c Updates output every second (for troubleshooting) netstat -v Gives verbose output, listing both active and inactive sockets netstat -e Gives verbose output for active connections only netstat -C Displays information from the route cache and is good for looking at past connections netstat -tap | grep smb netstat -tuapn
nice	The linux command nice - for setting priority - sudo nice -19 - maximum priority -20 - normal priority 0 - minimum priority 19 - renice to reset priority
nmcli
passwd	Command that creates or modifies a user password, also file that stores the list of all linux user accounts
ping
ps	lists the current system processes
pwd
reboot
resolv.conf	DNS Server
rm	remove file
rmdir
route	Shows Default Gateway
scp	secure copy to another linux computer
service
short
shutdown
ssh
su
sudo
tail
tar
top
touch
traceroute
tree
useradd
userdel
usermod
which
xargs
:wq	Save and quit
/	searches in vim
(echo Server: && hostname && echo -ne "\n" && ip addr) > /share/host-ip-info.txt
nano /etc/network/interfaces iface eth33 inet static address 192.168.239.146 netmask 255.255.255.0 gateway 192.168.239.2 broadcast 192.168.239.255 network 192.168.239.0 dns-nameservers 4.4.4.4 8.8.8.8 dns-search example.local
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