Here are some realistic examples of running gzip.
This is the output of the command `gzip -h':
gzip 1.2.4 (18 Aug 93) usage: gzip [-cdfhlLnNrtvV19] [-S suffix] [file ...] -c --stdout write on standard output, keep original files unchanged -d --decompress decompress -f --force force overwrite of output file and compress links -h --help give this help -l --list list compressed file contents -L --license display software license -n --no-name do not save or restore the original name and time stamp -N --name save or restore the original name and time stamp -q --quiet suppress all warnings -r --recursive operate recursively on directories -S .suf --suffix .suf use suffix .suf on compressed files -t --test test compressed file integrity -v --verbose verbose mode -V --version display version number -1 --fast compress faster -9 --best compress better file... files to (de)compress. If none given, use standard input.
This is the output of the command `gzip -v texinfo.tex':
texinfo.tex: 71.6% -- replaced with texinfo.tex.gz
The following command will find all gzip files in the current
directory and subdirectories, and extract them in place without
destroying the original:
find . -name '*.gz' -print | sed 's/^\(.*\)[.]gz$/gunzip < "&" > "\1"/' | sh