Gzip Multiple Files Individually and Keep the Original Files

Gzip multiple files individually and keep the original files

Your > in the last command gets parsed by the same shell which runs find. Use a nested shell:

find . -type f -name "*cache.html" -exec sh -c "gzip < {} > {}.gz" \;

Compress multiple files individually with Gzip

gzip */*.txt

But the extension for each file will be .txt.gz, as gzip uses it to know the original filename.

GZip every file separately

You can use gzip *

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Note:

• This will zip each file individually and DELETE the original.
• Use -k (--keep) option to keep the original files.
• This may not work if you have a huge number of files due to limits of the shell
• To run gzip in parallel see @MarkSetchell's answer below.

How to gzip each file separately inside a folder and then if successful delete the original file

I don't understand the issue you're having. According to the gzip man page:

Whenever possible, each file is replaced by one with the extension .gz, while keeping the same ownership modes, access and modification times.

My only guess is you're having permissions issues. Make sure you're logged in as the owner of the file that you are gzipping. However, in the gzip version on my machine, I get an obvious Operation not permitted warning when I try to gzip a file that I don't own. The operation still succeeds, but it's clear what is going on.

How to gzip all files in all sub-directories into one compressed file in bash

tar -zcvf compressFileName.tar.gz folderToCompress

everything in folderToCompress will go to compressFileName

Edit: After review and comments I realized that people may get confused with compressFileName without an extension. If you want you can use .tar.gz extension(as suggested) with the compressFileName

How to gzip all files in all sub-directories in bash

No need for loops or anything more than find and gzip:

find . -type f ! -name '*.gz' -exec gzip "{}" \;

This finds all regular files in and below the current directory whose names don't end with the .gz extension (that is, all files that are not already compressed). It invokes gzip on each file individually.

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Edit, based on comment from user unknown:

The curly braces ({}) are replaced with the filename, which is passed directly, as a single word, to the command following -exec as you can see here:

$ touch foo
$ touch "bar baz"
$ touch xyzzy
$ find . -exec echo {} \;

./foo
./bar baz
./xyzzy

Can multiple .gz files be combined such that they extract into a single file?

Surprisingly, this is actually possible.

The GNU zip man page states: multiple compressed files can be concatenated. In this case, gunzip will extract all members at once.

Example:

You can build the zip like this:

echo 1 > 1.txt ; echo 2 > 2.txt; echo 3 > 3.txt;
gzip 1.txt; gzip 2.txt; gzip 3.txt;
cat 1.txt.gz 2.txt.gz 3.txt.gz > all.gz

Then extract it:

gunzip -c all.gz > all.txt

The contents of all.txt should now be:

1
2
3

Which is the same as:

cat 1.txt 2.txt 3.txt

And - as you requested - "gunzip will extract all members at once".

c# gzip - keep extension on original file but remove when compressing

If I'm understanding your question correctly, there is no solution as stated. A gzip'ed file (at least, a file gzip'ed the way you're doing it) doesn't store its name, so if you compress a file named sample.doc and the output is named sample.gz, the ".doc" part is gone forever. That's why if you compress a file with the gzip command-line utility, it the compressed version sample.doc.gz.

In some constrained situations, you might be able to guess an appropriate extension by looking at the contents of the file, but that isn't very reliable. If you just need compression, and the file format isn't constrained, you could just build a .zip file instead, which does store filenames.

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