How To Add A Directory To Winzip

I have both winzip and the command line addon installed and I am trying to write a .bat file to zip up a certain folder on one of my drives. What I would like is create a zip from a folder but I need to exclude 2 folders (with subfolders) from the zip. The code I have so far that works is:

A directory is placed at the end of a ZIP file. This identifies what files are in the ZIP and identifies where in the ZIP that file is located. This allows ZIP readers to load the list of files without reading the entire ZIP archive. ZIP archives can also include extra data that is not related to the ZIP archive. This allows for a ZIP archive to be made into a self-extracting archive (application that decompresses its contained data), by prepending the program code to a ZIP archive and marking the file as executable. Storing the catalog at the end also makes possible hiding a zipped file by appending it to an innocuous file, such as a GIF image file.

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A ZIP file is correctly identified by the presence of an end of central directory record which is located at the end of the archive structure in order to allow the easy appending of new files. If the end of central directory record indicates a non-empty archive, the name of each file or directory within the archive should be specified in a central directory entry, along with other metadata about the entry, and an offset into the ZIP file, pointing to the actual entry data. This allows a file listing of the archive to be performed relatively quickly, as the entire archive does not have to be read to see the list of files. The entries within the ZIP file also include this information, for redundancy, in a local file header. Because ZIP files may be appended to, only files specified in the central directory at the end of the file are valid. Scanning a ZIP file for local file headers is invalid (except in the case of corrupted archives), as the central directory may declare that some files have been deleted and other files have been updated.

For example, we may start with a ZIP file that contains files A, B and C. File B is then deleted and C updated. This may be achieved by just appending a new file C to the end of the original ZIP file and adding a new central directory that only lists file A and the new file C. When ZIP was first designed, transferring files by floppy disk was common, yet writing to disks was very time-consuming. If you had a large zip file, possibly spanning multiple disks, and only needed to update a few files, rather than reading and re-writing all the files, it would be substantially faster to just read the old central directory, append the new files then append an updated central directory.

The ZIP format uses specific 4-byte "signatures" to denote the various structures in the file. Each file entry is marked by a specific signature. The end of central directory record is indicated with its specific signature, and each entry in the central directory starts with the 4-byte central file header signature.

Tools that correctly read ZIP archives must scan for the end of central directory record signature, and then, as appropriate, the other, indicated, central directory records. They must not scan for entries from the top of the ZIP file, because (as previously mentioned in this section) only the central directory specifies where a file chunk starts and that it has not been deleted. Scanning could lead to false positives, as the format does not forbid other data to be between chunks, nor file data streams from containing such signatures. However, tools that attempt to recover data from damaged ZIP archives will most likely scan the archive for local file header signatures; this is made more difficult by the fact that the compressed size of a file chunk may be stored after the file chunk, making sequential processing difficult.

This ordering allows a ZIP file to be created in one pass, but the central directory is also placed at the end of the file in order to facilitate easy removal of files from multiple-part (e.g. "multiple floppy-disk") archives, as previously discussed.

The original .ZIP format had a 4 GB (232 bytes) limit on various things (uncompressed size of a file, compressed size of a file, and total size of the archive), as well as a limit of 65,535 (216-1) entries in a ZIP archive. In version 4.5 of the specification (which is not the same as v4.5 of any particular tool), PKWARE introduced the "ZIP64" format extensions to get around these limitations, increasing the limits to 16 EB (264 bytes). In essence, it uses a "normal" central directory entry for a file, followed by an optional "zip64" directory entry, which has the larger fields.[40]

The format of the Local file header (LOC) and Central directory entry (CEN) are the same in ZIP and ZIP64. However, ZIP64 specifies an extra field that may be added to those records at the discretion of the compressor, whose purpose is to store values that do not fit in the classic LOC or CEN records. To signal that the actual values are stored in ZIP64 extra fields, they are set to 0xFFFF or 0xFFFFFFFF in the corresponding LOC or CEN record. If one entry does not fit into the classic LOC or CEN record, only that entry is required to be moved into a ZIP64 extra field. The other entries may stay in the classic record. Therefore, not all entries shown in the following table might be stored in a ZIP64 extra field. However, if they appear, their order must be as shown in the table.

In addition to what others suggested, it's important pay Attention to your file and directory names as Windows does not necessarily like Linux file path and names. It sometimes also escapes them differently when zipping. Examples are numerous, but most importantly dot files (. and ..), files with only case differences (name.txt and NAME.txt), absolute file paths (/tmp/file.txt). Some other characters which are allowed in file names on Windows could cause issues when Windows Explorer is used to open files. In my case ':' character was the deal breaker but took a lot of work to find this out.

If this works, you may be better off removing the characters that have been stripped off by -k option from your file/directory names try zipping normally. Note some parameters such as -k have side effects. In this case -k contradicts with -q option (for sym links).

where mydir is the directory containing your files. Note that the produced zip will contain the directory structure as well as the files. As peterph points out in his comment, this is usually seen as a good thing: extracting the zip will neatly store all the extracted files in one subdirectory.

Another way would be to use find and xargs: (this might include a "." directory in the zip, but it should still extract correctly. With my test, zip stripped the dot before compression)find . -type f -exec zip zipfile.zip {} +

So it does not matter how strong the encryption algorithm is if you forget to properly shred the temporary folders each time you unzip a psw-protected file. Most tools do not automatically clean the output directory nor warn the user about it. Same thing when compressing: you should make sure to shred the original file.

Extract a member from the archive to the current working directory; membermust be its full name or a ZipInfo object. Its file information isextracted as accurately as possible. path specifies a different directoryto extract to. member can be a filename or a ZipInfo object.pwd is the password used for encrypted files as a bytes object.

Extract all members from the archive to the current working directory. pathspecifies a different directory to extract to. members is optional and mustbe a subset of the list returned by namelist(). pwd is the passwordused for encrypted files as a bytes object.

Create a directory inside the archive. If zinfo_or_directory is a string,a directory is created inside the archive with the mode that is specified inthe mode argument. If, however, zinfo_or_directory isa ZipInfo instance then the mode argument is ignored.

If pathname is a file, the filename must end with .py, andjust the (corresponding *.pyc) file is added at the top level(no path information). If pathname is a file that does not end with.py, a RuntimeError will be raised. If it is a directory,and the directory is not a package directory, then all the files*.pyc are added at the top level. If the directory is apackage directory, then all *.pyc are added under the packagename as a file path, and if any subdirectories are package directories,all of these are added recursively in sorted order.

filterfunc, if given, must be a function taking a single stringargument. It will be passed each path (including each individual fullfile path) before it is added to the archive. If filterfunc returns afalse value, the path will not be added, and if it is a directory itscontents will be ignored. For example, if our test files are all eitherin test directories or start with the string test_, we can use afilterfunc to exclude them:

Exceeding limitations on different file systems can cause decompression failed.Such as allowable characters in the directory entries, length of the file name,length of the pathname, size of a single file, and number of files, etc.

7zip and Peazip are better alternatives to winzip or winrar. winzip/winrar require you to manage licensing while 7zip and peazip are both freeware fully approved for use in corporate and home environments. 7zip is my personal favorite but Peazip seems to be more friendly for end users

Is there a way (via a plugin maybe?) to change 7-zip to be like WinZip in how it displays files? I want all the files to be listed in a big, well, list. As opposed to what I will call the folder view where you have to drill down into the nested directories to find the file you want. So what I'm saying is all the files would be listed as their own entry in the table and the directory where the file lives would be displayed as another column in the table. The directory column would be one more way you could sort the table (by clicking on it) in addition to being able to sort by filename or any of the other columns. be457b7860