NAME

       vips - run vips operations from the command line

SYNOPSIS

       vips [options] [command] [command-options] [command-args]

DESCRIPTION

       vips(1)  is the VIPS universal main program. You can use it to run any VIPS operation from
       the command line, to query the VIPS function database, and to maintain parts of  the  VIPS
       library.

       To  run  a  VIPS  function,  the  first  argument  should  be the name of the function and
       following arguments should be the function parameters. For example:

         $ vips im_invert lena.v lena2.v

OPTIONS

       -p PLUGIN, --plugin=PLUGIN
              Load PLUGIN. Note that plugins in $VIPSHOME/lib are loaded automatically.

       -v, --version
              Show VIPS version.

COMMANDS

       list PACKAGE
              List operations defined in PACKAGE. PACKAGE can also be  "classes",  "packages"  or
              "all".

       cpph PACKAGE
              Print C++ header for PACKAGE. PACKAGE can also be a function name, or "all".

       cppc PACKAGE
              Print C++ binding for PACKAGE. PACKAGE can also be a function name, or "all".

       operation-name operation-arguments
              Execute a named operation, for example im_invert, or add. Names prefixed with "im_"
              are called via the vips7 interface, names without the  prefix  use  the  new  vips8
              interface.

EXAMPLES

       Run a vips7 operation. The vips7 interface does not suport optional arguments.

         $ vips im_invert lena.v lena2.v

       Run a vips8 operation. Operation options must follow the operation name.

         $ vips add --imtest=option.jpg lena.v lena2.v out.v

       Get a "usage" message for an operation

         $ vips add
         usage:
            add left right out
            add two images
         where:
            left         - Left-hand image argument, input VipsImage
            right        - Right-hand image argument, input VipsImage
            out          - Output image, output VipsImage
         operation flags: sequential-unbuffered
         add: too few arguments

RETURN VALUE

       returns 0 on success and non-zero on error.

SEE ALSO

       header(1)

COPYRIGHT

       The National Gallery and Birkbeck College, 1989-1996.

                                           30 June 1993                                   VIPS(1)