1
dpkg -l ?:package:Find version of a package
2
df -h::file system disk space usage
3
free -m::show RAM usage
4
ps auxww | grep ?:process:displays information about the active process
5
iwconfig::Display wireless network information
6
ifconfig -a::displays the status of the currently active interfaces
7
sudo iwlist::scan Scan Wireless networks
8
sudo /etc/init.d/networking restart::Reset the Network
9
lsb_release -a::What version of Ubuntu do I have?
10
uname -a::What kernel am I running
11
sudo apt-get update && sudo apt-get upgrade::Refresh update info and update all packages
12
sudo apt-get clean::clear out all packages in /var/cache/apt/archives
13
sudo apt-get autoclean::clear out obsolete packages(packages with a newer release)
14
apt-cache search ?:package:Find information on a package (not installed)
15
sudo lshw::List hardware
16
lspci::list all PCI devices
17
aplay -l::List all soundcards and digital audio devices
18
cat ?:path:Read File & Print to Standard Output
19
ls ? :path:List Folders Contents
20
ls -lSr ?:path:Show files by size, biggest last
21
mv ?:path:Move (Rename) Files
23
sudo lspci::attached PCI devices
24
chmod ? ?:permissions, file:Change access permissions, change mode
25
chown ? ?:owner,group, file:Change the owner and/or group of each given file
26
dmesg::Print kernel & driver messages
27
history::Command History
28
locate ?:file:Find files (updatedb to update DB)
29
sudo updatedb::update the database for locate
30
which ?:command:Show full path name of command
31
find -maxdepth 1 -type f | xargs grep -F ?:string:Search all regular files for 'string' in this dir
32
gpg -c ?:file:Encypt a file
33
gpg ?:file.gpg:Decrypt a file
34
tar -xjf ?:archive.tar:Extract all files from archive.tar
35
tar -czf ?:Destination.tar.gz Source:Create Destination from Source
36
iostat::cpu and I/O statistics
37
netstat::Print network connections and interface statistics
38
sudo fdisk -l ?:disk:List partition tables for specified devices
39
sudo ufw enable::Enable netfilter firewall
40
sudo ufw allow ?:port:Open a port in netfilter firewall
41
sudo ufw deny ?:port:Close a port in netfilter firewall
42
sudo ufw disable::Disable netfilter firewall
43
cat ? ? | sort | uniq > ? :file1, file2, file3:combine, sort and remove duplicates from 2 files
44
mkisofs -V LABEL -r dir | gzip > ?:isoname.iso.gz:Create cdrom image(iso) from contents of directory(pwd)
45
cdrecord -v dev=/dev/cdrom -audio -pad *.wav::Make audio CD from all wavs in current dir(pwd)
46
dpkg-query -W -f='${Installed-Size;10}\t${Package}\n' | sort -k1,1n::List all installed packages by size
47
tail -f /var/log/messages::Monitor messages log file
48
apropos ?:command or package:search the manual page names and descriptions
added
removed
data/clicompanion2.config
