Linux Learning Notes (1)-File handling related commands

• List files and directories

  LS (list)

  #ls

  type ls in the terminal and enter, listing the files and directories of the current directory , but excluding hidden files and directories

  #ls-A

  List all files in the current directory

  #ls-al

  List details of all files for the current purpose

• Create a Directory

  mkdir (Make directory)

  #mkdir Test

  Create A catalog of test in the current directory

• Show current directory

  PWD (print working directory)

  #pwd

  Print current directory

• Switch to a different directory

  CD (change directory)

  #cd Directory Name

• Copying files

  CP (copy)

  #cp the folder to copy the files to

  Copies a copy of a file to the specified directory, and if the filename is not written, the source file is named

• Moving files

  MV (move)

  Similar to the previous copy command, but does not produce a copy file

• deleting files

  RM (remove)

  #rm the file to be deleted

  Remove the file, be cautious, you may be tossing the system bad

• Delete Directory

  RmDir (remove directory)

  Similar to deleting files

• View File Contents

  Cat (CONCATENATE)

  #cat the file to view

• View Help Commands

  mAn (manual)

  #man want to see the help command

  is The result of the input man ls.

Other common operations and commands to add to the area

1.linux consists of three parts,the kernel ( kernel ), the shell and the programs ( program ).

The shell is used to connect the kernel, and the connection Shell is the most used in this machine is the terminal,the shell has many kinds, in the Kali is the default use of bash, This is also a more extensive use of a shell.

2. in the world of Linux There are only two things, one is file and processes

Everything in UNIX is either a file or a process

3. at the end of the input command, because of the variety of commands, it will inevitably error, you can press "tab" to do the automatic input, sometimes there will be no intention of the results

4.clear Command, clear the contents of the current screen. To make your eyes fresh and refreshing

5. contents of ".", "..", "~" in the directory

"." represents the current directory

".." represents the parent directory

"~" means home directory

6. The preceding prompt "#",# indicates that the current user has root privileges

7. running the current program is why add "./" followed by the program name

This design for security reasons, if the current directory is exactly known as LS program, and has executable permissions, if you do not need to add "./" will definitely execute the LS program in the current directory ,ls Commands are frequently used commands to prevent malicious programs from being executed without the administrator's knowledge

# Summary #

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