cfitsio

C library for reading and writing FITS data files

brewmacoslinux

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C access to FITS data files with optional Fortran wrappers

fitscopyfitsheadfitsverify

Display header information from a FITS file$ fitshead image.fits

Verify the integrity of a FITS file$ fitsverify data.fits

Copy and transform a FITS file$ fitscopy input.fits output.fits