Copying and deleting files

One 、cp（copy file）： Used to copy files or directories

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        grammar 
       
       

       
       cp [
       
       options] 
       
       sourcefile 
       
       destfile
       
       

       
       

       
       options
       
       

       
       -
       
       a： This option is typically used when copying directories , It retains links 、 File attribute , And copy all the contents of the directory 
       
       

       
        Action is equal to the dpR Parameter combination .
       
       

       
       -
       
       d： When you copy a link reserved . Here's a link is equivalent to  
       
       Windows 
       
        System Shortcuts .
       
       

       
       -
       
       f： Override existing target files without prompting .
       
       

       
       -
       
       i： And  
       
       -
       
       f 
       
        Instead option , Prompt before overwriting the destination file , It asks the user to confirm whether to overwrite ,
       
       

       
        answer  
       
       y 
       
        When the target file will be overwritten .
       
       

       
       -
       
       p： In addition to copying the contents of the file , It also copies the modification time and access rights to the new file .
       
       

       
       -
       
       r： If the source file is given a file directory , All subdirectories and files in this directory will be copied .
       
       

       
       -
       
       l： Does not copy files , Just build the link file .
      
      
      
      

       
       
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Two 、mv（move file）： Used to change the names of files and directories or move files or directories to other locations .

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        grammar 
       
       

       
       mv [
       
       options] 
       
       sourcefile 
       
       destfile
       
       

       
       

       
       options
       
       

       
       -
       
       b: 
       
        When the target file or directory exists , Before performing the overlay , A backup will be created for it .
       
       

       
       -
       
       i: 
       
        If you specify that the source directory or file to be moved has the same name as the target directory or file , Will first ask whether to overwrite the old text 
       
       

       
        Pieces of , Input  
       
       y 
       
        Means direct coverage , Input  
       
       n 
       
        Means to cancel the operation .
       
       

       
       -
       
       f: 
       
        If you specify that the source directory or file to be moved has the same name as the target directory or file , Don't ask , Direct coverage of old texts 
       
       

       
        Pieces of .
       
       

       
       -
       
       n: 
       
        Do not cover any existing files or directories .
       
       

       
       -
       
       u： When the source file is newer than the target file or the target file does not exist , To perform the move operation .
      
      
      
      

       
       
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3、 ... and 、rm（remove）： Used to delete a file or directory

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        grammar 
       
       

       
       rm [
       
       options] 
       
       file
       
       

       
       

       
       options
       
       

       
       -
       
       i 
       
        One by one asked to confirm before deleting .
       
       

       
       -
       
       f 
       
        Even if the original file is set to read-only attribute , Also delete , One without confirmation .
       
       

       
       -
       
       r 
       
        The directories and files are also removed one by one of the following .
      
      
      
      

       
       
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