How do I move files in node js

Question

How can I move files  like mv command shell  on node js   Is there any method for that or should I read a file  write to a new file and remove older file

User · Answer

util pump is deprecated in node 0 10 and generates warning message   util pump   is deprecated  Use readableStream pipe   instead   So the solution for copying files using streams is    var source   fs createReadStream   path to source    var dest   fs createWriteStream   path to dest     source pipe dest   source on  end   function        copied        source on  error   function err       error

User · Answer

Using promises for Node versions greater than 8 0 0   const  promisify    require  util    const fs   require  fs    const  join    require  path    const mv   promisify fs rename    const moveThem   async      gt         Move file   bar foo js to   baz qux js   const original   join   dirname   bar foo js      const target   join   dirname   baz qux js       await mv original  target      moveThem

User · Answer

Using the rename function   fs rename getFileName    dirname     new folder     getFileName      where  getFilename   file extension  old path    dirname     new folder     getFileName   assumming that you want to keep the file name unchanged

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Here s an example using util pump  from    How do I move file a to a different partition or device in Node js   var fs   require  fs        util   require  util     var is   fs createReadStream  source file   var os   fs createWriteStream  destination file     util pump is  os  function         fs unlinkSync  source file

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If you are trying to move or rename a node js source file  try this https   github com viruschidai node-mv  It will update the references to that file in all other files

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this is a rehash of teoman shipahi s answer with a slightly less ambiguous name  and following the design priciple of defining code before you attempt to call it   Whilst node allows you to do otherwise  it s not good a practice to put the cart before the horse    function rename or copy and delete  oldPath  newPath  callback         function copy and delete              var readStream   fs createReadStream oldPath           var writeStream   fs createWriteStream newPath            readStream on  error   callback           writeStream on  error   callback           readStream on  close                  function                      fs unlink oldPath  callback                                       readStream pipe writeStream              fs rename oldPath  newPath           function  err              if  err                  if  err code      EXDEV                       copy and delete                    else                     callback err                                 return     lt  lt  both cases  err copy and delete                        callback

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I would separate all involved functions  i e  rename  copy  unlink  from each other to gain flexibility and promisify everything  of course   const renameFile    path  newPath    gt     new Promise  res  rej    gt        fs rename path  newPath   err  data    gt        err           rej err            res data           const copyFile    path  newPath  flags    gt    new Promise  res  rej    gt        const readStream   fs createReadStream path         writeStream   fs createWriteStream newPath   flags         readStream on  error   rej       writeStream on  error   rej       writeStream on  finish   res       readStream pipe writeStream          const unlinkFile   path   gt     new Promise  res  rej    gt        fs unlink path   err  data    gt        err           rej err            res data           const moveFile    path  newPath  flags    gt    renameFile path  newPath       catch e   gt          if  e code      EXDEV           throw new e         else         return copyFile path  newPath  flags             then      gt  unlinkFile path              moveFile is just a convenience function and we can apply the functions separately  when  for example  we need finer grained exception handling

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Using nodejs natively   var fs   require  fs    var oldPath    old path file txt  var newPath    new path file txt   fs rename oldPath  newPath  function  err      if  err  throw err   console log  Successfully renamed - AKA moved          NOTE   This will not work if you are crossing partitions or using a virtual filesystem not supporting moving files             Flavien Volken Sep 2  15 at 12 50

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The fs-extra module allows you to do this with it s move   method  I already implemented it and it works well if you want to completely move a file from one directory to another - ie  removing the file from the source directory  Should work for most basic cases   var fs   require  fs-extra    fs move   tmp somefile     tmp does not exist yet somefile   function  err     if  err  return console error err   console log  success

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This example taken from  Node js in Action     A  move   function that renames  if possible  or falls back to copying   var fs   require  fs     module exports   function move oldPath  newPath  callback         fs rename oldPath  newPath  function  err            if  err                if  err code      EXDEV                     copy                  else                   callback err                             return                    callback                 function copy             var readStream   fs createReadStream oldPath           var writeStream   fs createWriteStream newPath            readStream on  error   callback           writeStream on  error   callback            readStream on  close   function                  fs unlink oldPath  callback                        readStream pipe writeStream

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According to  seppo0010 comment  I used the rename function to do that   http   nodejs org docs latest api fs html fs fs rename oldpath newpath callback     fs rename oldPath  newPath  callback       Added in  v0 0 2  oldPath  lt String gt     lt Buffer gt  newPath  lt String gt     lt Buffer gt  callback  lt Function gt        Asynchronous rename 2   No arguments other than a possible exception   are given to the completion callback

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Node js v10 0 0  const fs   require  fs   const   promisify     require  util   const pipeline   promisify require  stream   pipeline   await pipeline    fs createReadStream  source file path      fs createWriteStream  destination file path     catch err   gt         error handling    fs unlink  source file path

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Use the mv node module which will first try to do an fs rename and then fallback to copying and then unlinking

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With the help of below URL  you can either copy or move your file CURRENT Source to Destination Source     https   coursesweb net nodejs move-copy-file    x000D   x000D            Moves the  file to  dir2 Start            x000D  var moveFile    file  dir2   gt   x000D      include the fs  path modules x000D    var fs   require  fs    x000D    var path   require  path    x000D   x000D      gets file name and adds it to dir2 x000D    var f   path basename file   x000D    var dest   path resolve dir2  f   x000D   x000D    fs rename file  dest   err   gt   x000D      if err  throw err  x000D      else console log  Successfully moved    x000D        x000D     x000D   x000D    move file1 htm from  test   to  test dir 1   x000D  moveFile    test file1 htm      test dir 1     x000D            Moves the  file to  dir2 END            x000D   x000D            copy the  file to  dir2 Start            x000D  var copyFile    file  dir2   gt   x000D      include the fs  path modules x000D    var fs   require  fs    x000D    var path   require  path    x000D   x000D      gets file name and adds it to dir2 x000D    var f   path basename file   x000D    var source   fs createReadStream file   x000D    var dest   fs createWriteStream path resolve dir2  f    x000D   x000D    source pipe dest   x000D    source on  end   function     console log  Succesfully copied        x000D    source on  error   function err    console log err       x000D     x000D   x000D    example  copy file1 htm from  test dir 1   to  test   x000D  copyFile    test dir 1 file1 htm      test     x000D            copy the  file to  dir2 END            x000D   x000D   x000D

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Shelljs is a very handy solution    command   mv  options    source  destination   Available options   -f  force  default behaviour   -n  to prevent overwriting  const shell   require  shelljs    const status   shell mv  README md     home my-dir    if status stderr   console log status stderr   else console log  File moved

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Just my 2 cents as stated in the answer above   The copy   method shouldn t be used as-is for copying files without a slight adjustment   function copy callback        var readStream   fs createReadStream oldPath       var writeStream   fs createWriteStream newPath        readStream on  error   callback       writeStream on  error   callback           Do not callback   upon  close  event on the readStream        readStream on  close   function             Do instead upon  close  on the writeStream     writeStream on  close   function              callback                 readStream pipe writeStream       The copy function wrapped in a Promise   function copy oldPath  newPath      return new Promise  resolve  reject    gt        const readStream   fs createReadStream oldPath       const writeStream   fs createWriteStream newPath        readStream on  error   err   gt  reject err        writeStream on  error   err   gt  reject err         writeStream on  close   function           resolve                 readStream pipe writeStream          However  keep in mind that the filesystem might crash if the target folder doesn t exist

[file] How do I move files in node.js?

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