zip all.zip *.jpg #Compress all .jpg files into a zip package
unzip all.zip #Unzip all files in all.zip to the current directory
unzip all.zip -d all #Unzip all files in all.zip to the all folder in the current directory
zip -r hy.zip hy #Compress the hy folder in the current directory to hy.zip
zip -r hy.zip hy 123.txt #Compress the hy folder and 123.txt in the current directory to hy.zip