Most widely supported format.
Not so high compression rate.
Easy to view and extract single files.
Compresses dir file by file it seems.
ZIP file or directory:
zip -r "$F".zip "$F"
-r: add dir recursively. Otherwise, adds only the top dir and not its contents.
Using it on a directory will keep the top directory in the ZIP. To avoid that and keep only the files in the directory, do:
cd dir
zip -r ../dir.zip .
If you don't have hidden files on the top level:
zip -r dir.zip dir/*
Note that:
zip -r dir.zip dir/.*
will not work by default for hidden files, since .* will also expand to . and .. with default bash options.
-e: encrypt:
zip -er "$F".zip "$F"
You can still see filenames, but not extract them!
List all files in zip file
unzip -l "$F".zip
Extract files from zip:
unzip "$F".zip
If has password, asks for it.
To a dir:
unzip "$F".zip -d out
for F in *; do echo "$F"; echo "$F".zip; zip "$F".zip "$F"; done
ZIP every file in cur dir to file.zip
Zippy is the old name.
Google, open sourced in 2011.
Design goal: very high compression speed, at the cost of slightly lower compression ratios, usually around 20% to 100% lower.