Don't forget page

 sudo du / 2>/dev/null | sort -g -r | head -n 100 

 sudo find / -type f -size +1M -exec stat -c '%s %n' "{}"\; | sort -g -r 

 
find / -type f -size +1M
 

_____________________________________________________________________________

• Ctrl-B ? will display help for tmux
• Ctrl-B } will move pane to the next one
• Ctrl-B : resize-pane -D 4 this will resize current pane down 4 lines
• Ctrl-B : resize-pane -L 10 will resize pane left by 10 columns
• Ctrl-B : will get you to command promt for tmux

_____________________________________________________________________________

• cat /proc/partitions

_____________________________________________________________________________

• ps -eo pid,cmd,%mem,%cpu -sort=-%cpu

_____________________________________________________________________________

• du -h --summarize * | sort -h
• du --max-depth=1 | sort -n -r

_____________________________________________________________________________

• chattr +i myfile.txt
• chattr -i myfile.txt
• lsattr
• List of attributes

_____________________________________________________________________________

• iptables -F ... flush
• afp://user_name@192.168.1.4 - in finder Connect to server

_____________________________________________________________________________

• context.shadowColor = "colorname" //string

• context.shadowOffsetX = 0; // interger

• context.shadowOffsetY = 0; // integer

• context.shadowBlur=15; //integer

______________________________________________________________________________

Mount, unmount, check disk for errors etc.

• list avilable drives by doing: sudo fdisk -l or cat /proc/partitions
• create folder to point your usbkey to: sudo mkdir /home/jacek/usbkey
• attach your usbkey file system to that folder: sudo mount -t auto /dev/sda1 /home/jacek/usbkey
• umount /dev/sda1
• On OS X
     diskutil list
     diskutil unmount /dev/disk1s2
  
• mount //192.168.1.x/public /home/mountpoint -t cifs -o username=joe
• mount -t cifs //90.0.45.20/shared$ /home/jacek/mountpoint -o Administrator,password=haselko

• check disk on reboot: shutdown -F -r now
• check results in /var/log/fsck

____________________________________________________________________________

DD write image to sd card

dd if=/home/image.img of=/dev/sdd bs=4M conv=noerror,sync status=progress

____________________________________________________________________________

• ls -d pass* ... will list only local files prefix pass *

Esc+i or Fn+i -----> insert on in VIM on MAC

To display Canvas border properly in IE10 had to add meta tag to force it to ie10

Apache restart etc

• apachectl -k graceful .... use this one to restart
• apachectl -k restart
• apachectl -k graceful-stop
• apachectl -k stop

___________________________________________________________________________

GREP -FiR "searchterm" *

• F - fixed string
• E - extended regex
• i - ignore case
• v - show non matching lines
• n - show line numbers
• H - file name
• r - recursive
• R - recursive follow symlinks
• L - show file names that don't match
• l - show file names that match

__________________________________________________________________________

• Fail2ban config location - /etc/fail2ban/
• Fail2ban-client reload
• Fail2ban-client status

_________________________________________________________________________

• To change system date type :
• date --set 21:23:12
• date --set 2014-01-25
• ntpdate -s time.nist.gov
• /etc/init.d/ntp stop
• Display current time servers:
  ntpq -p
• Standard NTP query program
  more about NTPQ
• date without parameter will display current date and time

_________________________________________________________________________

• R S Y N C
• rsync -avz jacek@192.168.1.10:/var/www/brain.html /home/jacek/
• the above will copy brain.html to /home/jacek/
• rsync -avz jacek@192.168.1.88:/var/www/* /home/user/rp/var/www/

_________________________________________________________________________

• S E C U R E C O P Y
• SCP /var/www/mydocument.txt username@192.168.1.65:/home/username/new_document_name.txt
• SCP -r username@192.168.1.10:/var/www/*.* /destination

_________________________________________________________________________

__________________________________________________________________________

• Cron: pam_unix(cron:session) garbagge in auth.log

• Edit /etc/pam.d/common-session-noninteractive: Find line: session rquired  pam_unix.so and before it add the following 
  session  [success=1 default=ignore] pam_succeed_if.so service in cron quiet use_uid
  service cron restart

 
  


 Find all groups on the system
 more /etc/group 

 Delete user
 userdel user-name 

 Add user
 Adduser user-name 

 Delete user
 userdel user-name 

 Set user password
 passwd user-name

 Assign to group
 usermod -G group1 group2 group3 user-name

 List groups user is assigned to
 groups user-name

 Add to groups user is assigned to
 usermod -a -G group-name user-name

 
 

 Assign to group
 usermod -G primary-group, sambashare, sales, service, sarahh user-name

		  comma separated no spaces 

 Set Samba password
 smbpasswd -a user-name

 List users
 cut -d: -f1 /etc/passwd 

 change ownership of the file to another group
 chgrp group-name /1TBdisk2/sales/doc.txt

 Test smb.conf for errors
 testparm


 Secure Copy
 scp -rC user@192.168.1.23:/home/somedirectory/* /home/currentlocation/     

 Vim copy/paste 
 v, V - visual line y-copy p-paste

 service --status-all
 	     + means running

	     - means it is not

	     ? no status provided by service

 Remove directory 
 rm -rf folder-name

 Truncate file end of file 
 truncate some.log --size 4










Find Command


 find /user /home -name "*.txt" -type file 
    
 in directories /user and /home 

 find / -type d -iname 'WoJtek*' >> /home/jacek/mylist.txt 
 
    
 all directories names with string WoJteki - send output to

	     mylist.txt -name = not case sensitive 

 find . -name "*.py" -ctime -2
    
 in current directory all .py created in the last two days

 find . -mmin +0 -mmin -50 
 
    
 in current directory modified in the last 50 min

 find . -type f -name "badfile" -exec rm {} \;
    
 remove after find


 find / -name "*.gz"i -exec zgrep "myString" {} \;
    
 look for all gz files and find myString 


 find . -name "*.html" -exec grep -l w3 {} \;
    
 look for string w3 in all html files in current directory

 find . -name "*.html" -exec grep -l mytext {} \; 
    
 find all files one at a time containing mytext string 

	        -exec requires an argument .... space after {} is missing 




<


	
Package Management             
	
	
List Installed sorted by size
dpkg-query -Wf'${Installed-Size}\t${Package}\n' | sort -nr | more
	
Clean after removing
apt-get clean and apt-get autoremove
	
List all installed by package
dpkg -L alsa=utils
	
List installed
dpkg --get-selections
	
Create list of installed
dpkg --get-selections > /home/package-selection-list
	
 list can be moved to another wkst. and installed there with the following 
	
apt install $(cat /home/package-selection-list | awk '{print $1}' )
	
above will run install and feed the content of list but only use first column from it.








_________________________________________________________________________




Change keyboard layout
xkblayout="us"


_________________________________________________________________________

Change timezone setup on Raspbian
dpkg-reconfigure 
 date ->  to display current date and time 



 PS Command 
       ps -eo comm,etime,user | grep cp     
       ps -eo comm,etime,%cpu,user | grep 2345     
       ps -eo pid,cmd,%mem,%cpu,user --sort=-%mem | head     
                     




 Color values


Markup Validator 69.165.175.169