To copy a file using secure copy scp

Syntax → scp <username>@<IP_ADDRESS>:<path/to/file/on/that/machine> <where/to/save>

Example → scp [email protected]:Documents/code3d.tar .

To untar (extract) a .tar file

Syntax → tar -xvf filename.tar

emacs

• There is only one mode in emacs
• C-x means Ctrl + x
• M-x means Alt + x
• Moving around
  • C-p → Move up by one line
  • C-b → Move left by one character
  • C-f → Move right by one character
  • C-n → Move down by one line
  • C-a → Go to the beginning of the current line
  • C-e → Go to the end of the current line
  • C-v → Move forward one screen
  • M-< → Move to the first line of the file
  • M-b → Move left to the previous word
  • M-f → Move right to the next word
  • M-> → Move to the last line of the file
  • M-a → Move to the beginning of the current sentence
  • M-e → Move to the end of the current sentence
  • M-v → Move back one screen

emacs commands

• Exiting emacs
  • C-x C-s → Save buffer to the file
  • C-z → Exit emacs but keep it running
  • C-x C-c → Exit emacs and stop it
• Searching a text
  • C-s → Search forward
  • C-r → Search backward
  • M-x → Replace string
• Copy and Paste
  • M-backspace → Cut the word before the cursor
  • M-d → Cut the word after the cursor
  • C-k → Cut from the cursor to the end of the line
  • M-k → Cut from the cursor to the end of the sentence
  • C-y → Paste the content at the cursor