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# 5. Environment

The environment variable `GZIP` can hold a set of default options for `gzip`. These options are interpreted first and can be overwritten by explicit command line parameters. For example:

    for sh:    GZIP="-8v --name"; export GZIP
    for csh:   setenv GZIP "-8v --name"
    for MSDOS: set GZIP=-8v --name

On Vax/VMS, the name of the environment variable is `GZIP_OPT`, to avoid a conflict with the symbol set for invocation of the program.

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