Linux Cheatsheets - hewigovens/hewigovens.github.com GitHub Wiki

##tmux

Cmd    Action
c    Create a new window
n    Change to next window
p    Change to previous window
"    Split pane horizontally
%    Split pane vertically
,    Rename current window
o    Move to next pane

##tr

tr takes 2 parameters, the first one is a set of characters that it should translate, 
the second the set of characters that will act as a replacement. 
So the arguments abc 123 would mean that a gets replaced by 1, b with 2 and so on.

##split/cat

#split
split -b 75m input.zip

#merge
cat `ls x*` > reassembled.zip

#check
ls *.zip | xargs md5
MD5 (input.zip) = d760b448595f844b1162eaa3c04f83d8
MD5 (reassembled.zip) = d760b448595f844b1162eaa3c04f83d8

##Uptime

#system upteim
uptime
#current shell uptime
echo $SECONDS

##Default editor

#emacs key bindings
Ctrl-x Ctrl-e

##Network status

netstat -an
lsof -i
curl ifconfig.me

##man

#ASCII code
man ascii

#man [number] entry
man 7 gitcore-tutorial

##Last commands

#last execute command
!$
#Show latest command arguments
Alt+.
#Replace last command
#E.g. !$=sudo launchctl unload /Library/LaunchDaemons/org.goagent.local.plist
^unload^load

##Top, sort by mem or cpu

top
#press Shift+m -> sort by mem usage
#press Shift+p -> sort by cpu usage
#press Shift+w -> save current settings to ~/.toprc

##Ubuntu wireless device not managed

sudo vim /etc/NetworkManager/NetworkManager.conf  
#change to :  
[ifupdown]  
managed=true  
sudo /etc/init.d/network-manager restart  

##apt-get/dpkg

Problem: When attempting to run apt-get, you get an error reading "E: Unable to determine a suitable packaging system type".
Cause: DPKG is not installed.
Solution: Visit the debian package site, and download+extract the dpkg package.

Problem: When attempting to do any command (update, install, remove, etc.) with apt-get, you get an error saying "Cannot open file /var/lib/dpkg/status - open ... basicall saying that it cannot find the file named "status".
Cause: We simply have not install DPKG all of the way.
Solution: No worries, this is an easy solution. Simply navigate to /var/lib/dpkg, and create a blank file named "status".

##Unity ShortCuts

• Control-Super-D ==> show desktop
• Ctrl+Alt+Arrow ==> change workspace
• Alt+F2 ==> Run command
• Super + S ==> show all workspace
• hold super ==> show all shortcuts

##Linux Launcher

• Gnome-Do
• Kupfer
• Synapase

##Basic Compress/Decompress