Sunday, January 02, 2022

Tar and Curl in MS Windows 10

I wanted to scp a deep directory structure to a unix machine. In MS Windows 10, I tried to use the File Explorer to click once on the directory and right-click to use the SendTo and choose "Compressed (zipped) folder". That did not work and there was no error message. It simply failed silently.

I opened a PowerShell and found, to my surprise, that both curl and tar are now in Windows 10. To put directories and files into one larger file, the tar command may be used. By itself tar does not compress, though it put everything into one file to make it easier to take a snapshot of a directory structure.

The basics of tar on MS Windows 10 is to open a PowerShell window. Navigate to the top of the directory structure. Type:
tar -cf filename1 filename2 directory3 directory4 newTARfilename.tar

If you want to have ongoing feedback from the command, add the verbose flag:
tar -cvf filename1 filename2 directory3 directory4 newTARfilename.tar

This example uses PowerShell and shows the tar help, the directory, and the tar command.

PS C:\temp\showcompress> tar /?
Usage:
  List:    tar.exe -tf <archive-filename>
  Extract: tar.exe -xf <archive-filename>
  Create:  tar.exe -cf <archive-filename> [filenames...]
  Help:    tar.exe --help
PS C:\temp\showcompress> dir


    Directory: C:\temp\showcompress


Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d-----        2021-12-29     15:59                DecemberFolder


PS C:\temp\showcompress> tar -cf DecemberFolder.tar DecemberFolder
PS C:\temp\showcompress> dir


    Directory: C:\temp\showcompress


Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d-----        2021-12-29     15:59                DecemberFolder
-a----        2021-12-30     00:22    39059677696 DecemberFolder.tar






















You may also want to explore the Compress-Archive command in Powershell.

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