7-zip commandline

Question

I m creating a backup utility that zips all the files listed in a text file  I am using MS ACCESS as my front-end and 7-Zip for compression  These are the commands I am using   7zG exe a c  Backup backup zip  c  temp tmpFileList txt   All the files are compressed without their path  Is there a way to include the path for each file in the zip file  Then when backup zip is extracted the files would be restored to their original folder structure   Thanks

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try this one  it worked for me   7z exe a d  newFileName 7z  d  ExistingFile txt   open cmd and if you have installed 7zip app then try this   on command prompt it will like c  programs and files 7zip 7z exe a d  newFileName 7z  d  ExistingFile txt

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Instead of the option a use option x  this will create the directories but only for extraction  not compression

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In this 7-zip forum thread  in which many people express their desire for this feature  7-zip s developer Igor points to the FAQ question titled  How can I store full path of file in archive   to achieve a similar outcome   In short    separate files by volume  one list for files on C    one for D    etc  then for each volume s list of files    chdir to the root directory of the appropriate volume  eg  cd  d C    create a file listing with paths relative to the volume s root directory  eg  C  Foo Bar becomes Foo Bar  perform 7z a archive 7z  filelist as before with this new file list when extracting with full paths  make sure to chdir to the appropriate volume s root directory first

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The command-line program for 7-Zip is 7z or 7za  Here s a helpful post on the options available  The -r  recurse  option stores paths

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I ve not looked into this but shooting from the hip I d say that they dropped command line support in the portable  The reason people don t do much command line stuff in portable applications is that the OS  windows in your case  requires that executables be added to the  path  inclusion list   If that requirement is not met using command line utilities is rather tedious   7z -a    would be   d  portable z7 z7 -a c  to archive folder     Typing that out for everything is why GUI s make sense with things like portable apps it  the app  can remember it s own location and handle that stuff for you and if you can t run it you know it s not attached   If you really want the portable app to contain that though you can always install the full version and pull the required 7z exe out and put it into the portable folder making sure it s in with the required dll s   You ll have to set your path when you hit the shell after making sure it s attached    http   www redfernplace com software-projects patheditor  -- a good path editor  down  usefull if you have lots of path information 20  get s hard to read   http   www softpedia com get System System-Miscellaneous Path-Editor shtml -- alternet source for path editor   It s not advisable to modify your system path for temproary  portable  drives though manualy do that by   set path  path   d  portable z7     when you run dos cmd exe or http   sourceforge net p conemu home Home   The other answers address other problems better I m not going to try    http   www codejacked com zip-up-files-from-the-command-line  -- good reference for command line usage of z7 and z7a   PS  sorry for the necro but I figured it needed a more direct answer to why  even if it s just speculative

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Since 7-zip version 9 25 alpha there is a new -spf switch that can be used to store the full file paths including drive letter to the archive   7zG exe a -spf c  BAckup backup zip  c  temp tmpFileList txt   should be working just fine now

User · Answer

7-Zip wants relative paths in the list file otherwise it will store only the filenames  causing duplicate file name error   Assuming that your list contains full path names    Edit the list file to remove drive prefix  C   Make sure you are in the root of the drive when you run 7Z to use the above list file  Then it will store the paths and won t complain of the duplicate name  It wants relative paths in the list file    If your list file has paths relative to another folder  you should be running 7Z from that folder   Update  I noticed from another post above that the new 7-Zip has an -spf option that doesn t require the above steps  Not tested it yet but my steps are for earlier versions that do not have this option

[command-line] 7-zip commandline

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