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Making a Dataset that emulates `ls -tlra`?

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5

1

$begingroup$

When we ls -tlra in bash, we get filename information, size of files, date last modified, etc. Is there a way to create a Mathematica function which generates a Dataset of all of this information?

Some key functions here: FileNames[], FileDate[], FileSize[]. I'm not sure how to get information about file permissions, but that is less important.

files-and-directories

share|improve this question

asked 10 hours ago

GeorgeGeorge

49311 silver badge99 bronze badges

$endgroup$

add a comment | 

5

1

$begingroup$

When we ls -tlra in bash, we get filename information, size of files, date last modified, etc. Is there a way to create a Mathematica function which generates a Dataset of all of this information?

Some key functions here: FileNames[], FileDate[], FileSize[]. I'm not sure how to get information about file permissions, but that is less important.

files-and-directories

share|improve this question

asked 10 hours ago

GeorgeGeorge

49311 silver badge99 bronze badges

$endgroup$

add a comment | 

$begingroup$

When we ls -tlra in bash, we get filename information, size of files, date last modified, etc. Is there a way to create a Mathematica function which generates a Dataset of all of this information?

Some key functions here: FileNames[], FileDate[], FileSize[]. I'm not sure how to get information about file permissions, but that is less important.

files-and-directories

share|improve this question

asked 10 hours ago

GeorgeGeorge

49311 silver badge99 bronze badges

$endgroup$

share|improve this question

asked 10 hours ago

GeorgeGeorge

49311 silver badge99 bronze badges

share|improve this question

asked 10 hours ago

GeorgeGeorge

49311 silver badge99 bronze badges

asked 10 hours ago

GeorgeGeorge

49311 silver badge99 bronze badges

asked 10 hours ago

GeorgeGeorge

49311 silver badge99 bronze badges

2 Answers
2

active

oldest

votes

8

$begingroup$

Build your own

Here I create a Dataset of files, taking advantage of the "Rules" option for FileDate. You can add your own information relevant for files or directories in the respective sections after DirectoryQ. Just as a playful example I added FileHash which may slows down things considerably.

lstlra[dir_] := Dataset[
 <|(* For all files and directories *)
 "FileName" -> FileNameTake[#],
 "Type" -> FileType[#],
 FileDate[#, "Rules"],
 If[
 DirectoryQ[#],
 <|(* Directory only *)
 |>,
 <|(* Files only *)
 "FileSize" -> FileSize[#],
 "MD5-Hash" -> FileHash[#]
 |>
 ]
 |> & /@ FileNames[All, dir]
 ][SortBy["Modification"]]

---

Using File Information

After the answer by @swish, was very nice to learn about Information applied to File. Here I just change the Head to and Association (using Apply @@) to allow you to put your own stuff. Unfortunately it has too much information, more than you possible need.

lstlra2[dir_] := Dataset[
 <|
 Association @@ Information[File[#]],
 If[
 DirectoryQ[#],
 <|(* Directory only *)
 |>,
 <|(* Files only *)
 "MD5-Hash" -> FileHash[#]
 |>
 ]
 |> & /@ FileNames[All, dir]
 ][SortBy["LastModificationDate"]]

share|improve this answer

edited 9 hours ago

answered 9 hours ago

rhermansrhermans

23.3k44 gold badges4242 silver badges107107 bronze badges

$endgroup$

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Is there a way to have the final results sorted by date modified (this is also the behavior of ls -tlra I believe).
  $endgroup$
  – George
  9 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  @George Oh, forgot about that, see last edit. I added [SortBy["Modification"]] and SortBy["LastModificationDate"] depending the function.
  $endgroup$
  – rhermans
  9 hours ago
  
  

  
  
  
  

add a comment | 

7

$begingroup$

Try something like that

props = "CreationDate", "UnixPermissionsString", "ByteCount";
ls[dir_] := 
 Dataset@FileSystemMap[
 AssociationThread[props -> Information[File@#, props]] &, dir]

share|improve this answer

answered 10 hours ago

swishswish

4,3861515 silver badges3737 bronze badges

$endgroup$

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Nice one! (+1) Thanks for introducing me to Information applied to File.
  $endgroup$
  – rhermans
  9 hours ago
  

  
  
  
  

add a comment | 

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8

$begingroup$

Build your own

Here I create a Dataset of files, taking advantage of the "Rules" option for FileDate. You can add your own information relevant for files or directories in the respective sections after DirectoryQ. Just as a playful example I added FileHash which may slows down things considerably.

lstlra[dir_] := Dataset[
 <|(* For all files and directories *)
 "FileName" -> FileNameTake[#],
 "Type" -> FileType[#],
 FileDate[#, "Rules"],
 If[
 DirectoryQ[#],
 <|(* Directory only *)
 |>,
 <|(* Files only *)
 "FileSize" -> FileSize[#],
 "MD5-Hash" -> FileHash[#]
 |>
 ]
 |> & /@ FileNames[All, dir]
 ][SortBy["Modification"]]

---

Using File Information

After the answer by @swish, was very nice to learn about Information applied to File. Here I just change the Head to and Association (using Apply @@) to allow you to put your own stuff. Unfortunately it has too much information, more than you possible need.

lstlra2[dir_] := Dataset[
 <|
 Association @@ Information[File[#]],
 If[
 DirectoryQ[#],
 <|(* Directory only *)
 |>,
 <|(* Files only *)
 "MD5-Hash" -> FileHash[#]
 |>
 ]
 |> & /@ FileNames[All, dir]
 ][SortBy["LastModificationDate"]]

share|improve this answer

edited 9 hours ago

answered 9 hours ago

rhermansrhermans

23.3k44 gold badges4242 silver badges107107 bronze badges

$endgroup$

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Is there a way to have the final results sorted by date modified (this is also the behavior of ls -tlra I believe).
  $endgroup$
  – George
  9 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  @George Oh, forgot about that, see last edit. I added [SortBy["Modification"]] and SortBy["LastModificationDate"] depending the function.
  $endgroup$
  – rhermans
  9 hours ago
  
  

  
  
  
  

add a comment | 

8

$begingroup$

Build your own

Here I create a Dataset of files, taking advantage of the "Rules" option for FileDate. You can add your own information relevant for files or directories in the respective sections after DirectoryQ. Just as a playful example I added FileHash which may slows down things considerably.

lstlra[dir_] := Dataset[
 <|(* For all files and directories *)
 "FileName" -> FileNameTake[#],
 "Type" -> FileType[#],
 FileDate[#, "Rules"],
 If[
 DirectoryQ[#],
 <|(* Directory only *)
 |>,
 <|(* Files only *)
 "FileSize" -> FileSize[#],
 "MD5-Hash" -> FileHash[#]
 |>
 ]
 |> & /@ FileNames[All, dir]
 ][SortBy["Modification"]]

---

Using File Information

After the answer by @swish, was very nice to learn about Information applied to File. Here I just change the Head to and Association (using Apply @@) to allow you to put your own stuff. Unfortunately it has too much information, more than you possible need.

lstlra2[dir_] := Dataset[
 <|
 Association @@ Information[File[#]],
 If[
 DirectoryQ[#],
 <|(* Directory only *)
 |>,
 <|(* Files only *)
 "MD5-Hash" -> FileHash[#]
 |>
 ]
 |> & /@ FileNames[All, dir]
 ][SortBy["LastModificationDate"]]

share|improve this answer

edited 9 hours ago

answered 9 hours ago

rhermansrhermans

23.3k44 gold badges4242 silver badges107107 bronze badges

$endgroup$

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Is there a way to have the final results sorted by date modified (this is also the behavior of ls -tlra I believe).
  $endgroup$
  – George
  9 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  @George Oh, forgot about that, see last edit. I added [SortBy["Modification"]] and SortBy["LastModificationDate"] depending the function.
  $endgroup$
  – rhermans
  9 hours ago
  
  

  
  
  
  

add a comment | 

$begingroup$

Build your own

Here I create a Dataset of files, taking advantage of the "Rules" option for FileDate. You can add your own information relevant for files or directories in the respective sections after DirectoryQ. Just as a playful example I added FileHash which may slows down things considerably.

lstlra[dir_] := Dataset[
 <|(* For all files and directories *)
 "FileName" -> FileNameTake[#],
 "Type" -> FileType[#],
 FileDate[#, "Rules"],
 If[
 DirectoryQ[#],
 <|(* Directory only *)
 |>,
 <|(* Files only *)
 "FileSize" -> FileSize[#],
 "MD5-Hash" -> FileHash[#]
 |>
 ]
 |> & /@ FileNames[All, dir]
 ][SortBy["Modification"]]

---

Using File Information

After the answer by @swish, was very nice to learn about Information applied to File. Here I just change the Head to and Association (using Apply @@) to allow you to put your own stuff. Unfortunately it has too much information, more than you possible need.

lstlra2[dir_] := Dataset[
 <|
 Association @@ Information[File[#]],
 If[
 DirectoryQ[#],
 <|(* Directory only *)
 |>,
 <|(* Files only *)
 "MD5-Hash" -> FileHash[#]
 |>
 ]
 |> & /@ FileNames[All, dir]
 ][SortBy["LastModificationDate"]]

share|improve this answer

edited 9 hours ago

answered 9 hours ago

rhermansrhermans

23.3k44 gold badges4242 silver badges107107 bronze badges

$endgroup$

lstlra[dir_] := Dataset[
 <|(* For all files and directories *)
 "FileName" -> FileNameTake[#],
 "Type" -> FileType[#],
 FileDate[#, "Rules"],
 If[
 DirectoryQ[#],
 <|(* Directory only *)
 |>,
 <|(* Files only *)
 "FileSize" -> FileSize[#],
 "MD5-Hash" -> FileHash[#]
 |>
 ]
 |> & /@ FileNames[All, dir]
 ][SortBy["Modification"]]

lstlra2[dir_] := Dataset[
 <|
 Association @@ Information[File[#]],
 If[
 DirectoryQ[#],
 <|(* Directory only *)
 |>,
 <|(* Files only *)
 "MD5-Hash" -> FileHash[#]
 |>
 ]
 |> & /@ FileNames[All, dir]
 ][SortBy["LastModificationDate"]]

share|improve this answer

edited 9 hours ago

answered 9 hours ago

rhermansrhermans

23.3k44 gold badges4242 silver badges107107 bronze badges

answered 9 hours ago

rhermansrhermans

23.3k44 gold badges4242 silver badges107107 bronze badges

answered 9 hours ago

rhermansrhermans

23.3k44 gold badges4242 silver badges107107 bronze badges

7

$begingroup$

Try something like that

props = "CreationDate", "UnixPermissionsString", "ByteCount";
ls[dir_] := 
 Dataset@FileSystemMap[
 AssociationThread[props -> Information[File@#, props]] &, dir]

share|improve this answer

answered 10 hours ago

swishswish

4,3861515 silver badges3737 bronze badges

$endgroup$

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Nice one! (+1) Thanks for introducing me to Information applied to File.
  $endgroup$
  – rhermans
  9 hours ago
  

  
  
  
  

add a comment | 

7

$begingroup$

Try something like that

props = "CreationDate", "UnixPermissionsString", "ByteCount";
ls[dir_] := 
 Dataset@FileSystemMap[
 AssociationThread[props -> Information[File@#, props]] &, dir]

share|improve this answer

answered 10 hours ago

swishswish

4,3861515 silver badges3737 bronze badges

$endgroup$

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Nice one! (+1) Thanks for introducing me to Information applied to File.
  $endgroup$
  – rhermans
  9 hours ago
  

  
  
  
  

add a comment | 

$begingroup$

Try something like that

props = "CreationDate", "UnixPermissionsString", "ByteCount";
ls[dir_] := 
 Dataset@FileSystemMap[
 AssociationThread[props -> Information[File@#, props]] &, dir]

share|improve this answer

answered 10 hours ago

swishswish

4,3861515 silver badges3737 bronze badges

$endgroup$

props = "CreationDate", "UnixPermissionsString", "ByteCount";
ls[dir_] := 
 Dataset@FileSystemMap[
 AssociationThread[props -> Information[File@#, props]] &, dir]

share|improve this answer

answered 10 hours ago

swishswish

4,3861515 silver badges3737 bronze badges

answered 10 hours ago

swishswish

4,3861515 silver badges3737 bronze badges

answered 10 hours ago

swishswish

4,3861515 silver badges3737 bronze badges