ip addr		Display info about active network interfaces
ip route		Display currently active routing table
dpkg -L ? 	Package name	List all files installed by a given package
dpkg -S $(which ?) 	command name	List which package installed given command
dpkg -S ?	path (example /etc/wgetrc)	List which package installed given file or directory
dpkg-deb -I ?	.deb package file	Display information about given .deb file
dpkg-deb -c ?	.deb package file	List contents of given .deb file
dpkg-source -x ?	.dsc source package file	Extract source package to current directory
gksu dpkg-reconfigure ?	Package name	Reconfigures given installed package
gksu dpkg -i ?	.deb package file	Installs given .deb package
find . -type d		List all directories under current directory
find . -size +?	File size (example 10M)	List all files under current directory over given size
find . -mtime 0		List all files under current directory modified in last 24 hours
find . -mtime +?	Number of days	List all files under current directory modified more than given number of days ago
find . -newer ?	filename	List all files under current directory newer than given file
find . ! -newer ?	filename	List all files under current directory older than given file
find . ! -user $USER 		List all files under current directory not owned by current user
find . -user ?	Username	List all files under current directory owned by given user
find . -perm -2 ! -type l		List all world-writeable files and directories under current directory
mount		List all mounted filesysystems
mount -t ?	Filesystem type (example ext4)	List all mounted filesystems of given type
gksu umount ?	Device or mount point	Un-mount the filesystem from the given device or mount point
gksu mount -av		Mount all automatically mounted filesystems (listed in /etc/fstab)
gksu mount ? ?	device, mount point	Mount given device at given mount point
gksu fdisk -l /dev/sda		List partition table of first hard drive /dev/sda
gksu fdisk -l ?	Device name (example /dev/sdb)	List partition table of given device
du -sh .		Display total size of all files and directories under current directory
du -skxc * .[^.]* |sort -n|tail -20		List disk usage in Kbytes of largest 20 files or subdirectories under current dir in current filesystem
du -skxc * .[^.]* |sort -n		List disk usage in Kbytes of all files and directories under current directory in current filesystem
du -smxc * .[^.]* |sort -n|tail -20		List disk usage in Mbytes of largest 20 files or subdirectories under current dir in current filesystem
du -smxc * .[^.]* |sort -n		List disk usage in Mbytes of all files and directories under current directory in current filesystem
wget ?	File URL (example http://example.com/somefile.html)	Download single given file using http, ftp or https
wget -m ? 	Site URL (example http://example.com)	Recursively download entire given site
ls -ltr		List files, most recently modified last
ls -lAd .[^.]*		List all files and directories starting with a dot (all hidden files and directories)
gksu lsof -c ?	command name	List files opened by processes beginning with given command name
gksu lsof +D ?	directory	List open files under given directory
gksu lsof -i		List open (Internet) network sockets
gksu lsof -N		List open NFS files
gksu lsof -U		List open Unix domain files (Unix sockets)
tar axf ?	Compressed tar archive (example somefile.tar.bz2)	Extract given compressed tar archive to current directory
tar atf ?	Compressed tar archive (example somefile.tar.gz)	Test given compressed tar archive integrity
tar jcf ? ?	Compressed tar archive filename (example myfiles.tar.bz2),File or directory spec	Create .tar.bz2 compressed archive of given filespec
zip -r ? ?	Zip file name (example myfiles.zip),file or directory spec	Create .zip compressed archive of given filespec
unzip ?	Zip file name	Extract given compressed zip archive into current directory
gzip -9 ?	Filename	Compress given file using gzip, adding a .gz suffix to its name
bzip2 -9 ?	Filename	Compress given file using bzip2b, adding a .bz2 suffix to its name
gunzip ?	Filename (example myfile.gz)	Decompress given gzipped file, removing .gz suffix
bunzip2 ?	Filename (example somefile.bz2)	Decompress given bzip2'ed file, removing .bz2 suffix
gunzip -t ?	Filename (example myfile.gz)	Test compression of given gzipped file
bunzip2 -t ?	Filename (example myfile.bz2)	Test compression of given bzip2'ed file
cd $OLDPWD		Change directory to previously used directory
pushd ?	directory	Change to given directory, remembering current directory on stack
popd		Change to topmost directory on stack created by pushd
pwd		List current directory
cd		Change to home directory
gksu apt-get update		Update database of available packages
gksu apt-get install ?	Package	Install given package and its dependencies
gksu apt-get remove ?	Package	Remove given package
gksu apt-get auto-remove		Remove all packages installed as dependencies which are no longer needed
apt-get source ?	Package	Download and install given source package into current directory
date		Display local date and time in local display format
date -R		Display local date and time in RFC2822 format
date -u		Display UTC time in local display format
date -u +%s		Display UTC time in number of seconds past the epoch
ntpq -p		List NTP time sources and their offsets
smbstatus		List current status of local SAMBA server
smbclient -L \\\\? -N	Hostname	List shares and related information about SMB server on given host
testparm -s		Test and display current SAMBA configuration
gksu service ? stop	Service name	Stop given service
gksu service ? start	Service name	Start given service
gksu service ? restart	Service name	Restart given service
gksu service ? status	Service name	Show status of given service
jobs		List current jobs
fg ?	jobspec (example %1)	Run given job the foreground
bg ?	jobspec (example %1)	Run given job the background
suspend		Suspend the currently running shell
md5sum ?	filename or wildcard	Display MD5 checksum of given file(s)
sha1sum ?	filename or wildcard	Display SHA-1 checksum of given file(s)
gpg --list-keys --list-options show-photos ?	key id	Display specified GnuPG key, with photo if present
gpg --list-keys 		Display GnuPG keys
gpg --clearsign ?	filename	Create a clearsigned copy of given filename with a .asc suffix
gpg -ea -r ? ?	Key ID, filename	Create encrypted armoured copy of given file with a .asc suffix, for decryption by user with given GnuPG key id
gpg -d ?	filename	Decrypt and display given file
gpg -c ?	filename	Encrypt given file using symetric cipher and prompt for passphrase, result in filename.gpg
gpg --keyserver keyserver.ubuntu.com --recv-keys ?	Key ID	Import public key with given key ID from Ubuntu keyserver
top		Interactively display running processes (q to quit)
top -n1		Display a snapshot of currently running processes
htop		Display configurable interactive process viewer (q to quit)
vmstat 5		Display information about virtual memory (process, swap, disk activity, etc.) every 5 seconds (Ctrl-C to quit)
iostat 5		Display information about io activity every 5 seconds (Ctrl-C to quit)
gksu jnettop -i eth0		Display information about network traffic (q to quit)
uptime		Display how long system has been running and current load averages
gksu apt-get install packaging-dev		Installs all the usual basic Debian/Ubuntu development and packaging tools
rmadison -u ubuntu ?	package name	Display versions of given source package in all releases of Ubuntu
rmadison -u debian ?	package name	Display versions of given source package in all releases of Debian
rmadison -u ubuntu -s precise ?	package name	Display version of given source package in Precise version of Ubuntu
rmadison -u debian -s unstable ?	package name	Display version of given source package in Debian unstable
sudoedit ?	filename	Edit filename with root priviledges
gksu visudo		Edit sudo configuration file