Under /usr/cti/APP_sys, I have hundreds of directories and subdirectories and files, etc.I wonder what the best approach in order to compress the /usr/cti/APP_sys  directory (get the best low capacity of APP_sys).Meanwhile I use the following command   tar zcvf  APP_sys.gz  APP_sysbut my target is to find the best approach in order to get the best low capacity from APP_sys directory.   tar Common Options:   -C, --directory DIR   -f, --file F   -j, --bzip2   -p, --preserve-permissions   -v, --verbose   -z, --gzip
what the best approach in order to compress directory with Hundreds of sub directories
linux;tar;zip;cpio