MY LINUX NOTES

• Create your user account on the server
  
  • ssh –l root 10.0.3.***
  • yes
  • linuxlinux
  • useradd sgarcia
  • passwd sgarcia
  • famous2007
  • usermod –c 'Sommer R. Garcia' –G wheel sgarcia
    
• Edit your .bashrc
  
  • exit
  • ssh –l sgarcia 10.0.3.***
  • famous2007
  • vi ~/.bashrc
  • "Insert"
  • PATH=$PATH:/sbin:/usr/sbin
  • "ESC"
  • :wq
    
• Create new group
  
  • exit
  • ssh –l sgarcia 10.0.3.***
  • famous2007
  • sudo groupadd Growers
    
• Create new directory
  
  • sudo mkdir /'Company Data'/'Plant Farmers'
    
• Give group permissions on a directory
  
  • sudo chgrp Growers /'Company Data'/'Plant Farmers'
  • chmod 775 /'Company Data'/'Plant Farmers'
    
• Crete new user
  
  • sudo useradd tblack
    
• Create password for new user
  
  • sudo passwd tblack
  • chum
    
• Add details to new user
  
  • sudo usermod –c "Tinsi D. Black" –G Growers tblack
    
• Create a symbolic link
  
  • sudo ln –s /'Company Data'/'Plant Farmers' /home/tblack/Work
    
• Create permanent alias for new user
  
  • sudo vi /home/tblack/.bashrc
  • "Insert"
  • alias goto="cd ~/Work"
  • "ESC"
  • :wq
    
• Create folder in new user's home directory
  
  • sudo mkdir /home/tblack/Scripts
    
• Change owner of new directory
  
  • sudo chown tblack /home/tblack/Scripts
    
• Change group of new directory
  
  • sudo chgrp tblack /home/tblack/Scripts
    
• Edit user's .bashrc with new path
  
  • sudo vi /home/tblack/.bashrc
  • "Insert"
  • PATH=$PATH:~/Scripts
  • "ESC"
  • :wq
    
• Create executable in user's home directory
  
  • sudo vi /home/tblack/thescript
  • "Insert"

clear echo " insert 5 lines Hello! This is my File making script. insert 5 lines What would you like to call the file?" read INPUT touch ~/"$INPUT".txt clear ls –l ~

• "ESC"
• :wq
  
• Change owner of the script
  
  • sudo chown tblack /home/tblack/thescript
    
• Change group of the script
  
  • sudo chgrp tblack /home/tblack/thescript
    
• Make the script executable to the owner
  
  • sudo chmod 775 /home/tblack/thescript
    
• Find a hidden file
  
  • sudo find / -name "answer.log"2>/dev/null
    
• Output tail
  
  • sudo tail -1 /lib/udev/devices/Secret/answer.log 1>/~/Found_Tail.txt
    
• Output head
  
  • sudo head -2 /lib/udev/devices/Secret/answer.log 1>/~/Found_Head.txt
    
• Output grep
  
• sudo grep 'this is the line' /lib/udev/devices/Secret/answer.log 1>/~/Found_Grep.txt
  
• Extra Credit
  • cd /~
  • vi EXTRA
  • "Insert"
    

clear echo " insert 5 lines Check out my awesome Extra Credit Script!!!!! insert 3 lines Allow me to create and display a file for you. insert 3 lines Please type the word Credit" read INPUT touch ~/"$INPUT".txt cat ~/Found_Head.txt >> ~/"$INPUT".txt cat ~/Found_Grep.txt >> ~/"$INPUT".txt cat ~/Found_Tail.txt >> ~/"$INPUT".txt clear cat ~/"$INPUT".txt

• "ESC"
• :wq
• sudo mkdir /~/Scripts
• sudo mv /~/EXTRA /~/Scripts
• sudo chmod 775 /~/Scripts/EXTRA
• sudo vi /~/.bashrc
• "Insert"
• PATH=$PATH:/sbin:/usr/sbin:/~/Scripts
• "ESC"
• :wq
• exit
  

  Now log back in as yourself and type the word EXTRA to run the executable file.
  Relax. You are done!