Basic ubuntu commands and shortcuts for daily usage

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Basic ubuntu commands and shortcuts for daily usage



Shortcuts  

ctrl +alt    +t   open a terminal
ctrl +alt    +l   lock the pc
ctrl +shift +t   open a new tab
ctrl +shift +w quit in current tab
ctrl +shift +q  quit from terminal
ctrl +shift +f   to find something
ctrl +q             close application
alt  +tab          switch applications
f11                   full screen

Commands

pwd          print working directory
cd             change directory
mkdir       make directory
rmdir        remove directory
./               execute a file
touch       create a file
rm             delete a file
exit           do exit action
cd ..          go to previous directory
cat            open a file
free           check the memory
ifconfig     interface configuration
xrandr -q  current screen resolution
xrandr -s  set a new screen resolution
grep          search text
history      display all entered list of commands
ls               show files
ls -al          show files and hidden files
cd ~           change to home directory
cd /            change to root directory

mkdir -p t{1..10}/{1..10} make folders range and sub folders range
cp ~/path/{multiple files} ~/path/ copy multiple files from one destination to other destination.
                       ex:-   cp ~/Desktop/{test.sh,a.sh} ~/Desktop/sh-sample/
Ctrl +Alt+ F1   for cli mode
Ctrl +Alt+ F7   for gui mode


chmod change the file permission
  • 0: No permission
  • 1: Execute permission
  • 2: Write permission
  • 3: Write and execute permissions
  • 4: Read permission
  • 5: Read and execute permissions
  • 6: Read and write permissions 
  • 7: Read, write and execute permissions
Add Root Login- sudo passwd root
Change hostname Permanently-  sudo hostnamectl set-hostname NewName

Details

  • Dollar sign($)means you are a normal user.
  • Hash sign(#)means you are the system administrator (root).



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