ls: cannot access '/meteor/cam1/grid-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9].png': No such file or directory
ls: cannot access '/meteor/cam1/lens-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9].pto': No such file or directory
convert: unable to open image `/meteor/cam1/grid.png': No such file or directory @ error/blob.c/OpenBlob/2712.
convert: unable to open file `/meteor/cam1/grid.png' @ error/png.c/ReadPNGImage/3919.
convert: no images defined `/tmp/grid-labels-22441.png' @ error/convert.c/ConvertImageCommand/3210.
identify: unable to open image `/meteor/cam1/grid.png': No such file or directory @ error/blob.c/OpenBlob/2712.
identify: unable to open file `/meteor/cam1/grid.png' @ error/png.c/ReadPNGImage/3919.
convert: no images defined `/tmp/empty-22441.png' @ error/convert.c/ConvertImageCommand/3210.
composite: unable to open image `/tmp/grid-labels-22441.png': No such file or directory @ error/blob.c/OpenBlob/2712.
composite: unable to open file `/tmp/grid-labels-22441.png' @ error/png.c/ReadPNGImage/3919.
composite: missing an image filename `temp-20170802231436-grid.jpg' @ error/composite.c/CompositeImageCommand/1613.
ls: write error: Broken pipe