[Unix]Basic and Commands

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Unix Operating System

The Kernel

The kernel of UNIX is the hub of the operating system:

  • it allocates time and memory to programs
  • handles the filestore
  • communications in response to system calls

The Shell

Commands

ls -la: show owner, group, bytes, last modification, hidden & name
cd My\ /Music: cd My Music
cat temp.txt: show contents of file
chmod -options <FILE NAME>: change permisions of file
cat temp.txt | grep hound: in temp.txt, search for hound
ls | grep apple: search files with apple in filename