rl2sniff - Sniffer tool for RasterLite2

rl2sniff  is  a sniffer tool for RasterLite2.  Sometimes handling a relevant number of raster images (may
       be of different origin and presenting different technical characteristics) isn't an easy task,  most  no‐
       tably  when  your images are dispersed into many different folders.  The rl2sniff CLI tool is exactly in‐
       tended to offer a significant help in organizing and planning any preliminary activity required in  order
       to create and populate your RasterLite2's Coverages.

       rl2sniff  will  examine  files  containing a raster image, and will then create a report showing the more
       relevant characteristics for each one; the supported arguments are the followings:

       • arguments specifying the intended target:

         • -srcpathname: will examine just a single input raster image.

         • -dirpathname: will explore a whole directory aka folder.

         • Please note: -src and -dir are mutually exclusive options.

         • -extextension: combined with -dir will restrict the search to a specific raster format.

         • if no target is explicitly selected (e.g. when there are no arguments at all) then the currentwork‐ingdirectory will be intended by default.

       • -wf: any georeferencing information will be always retrieved from a companion worldfile ⟨http://
         en.wikipedia.org/wiki/World_file⟩ .

         Please  note: in this case any georeferencing found in the worldfile will always override any other in‐
         formation eventually found e.g. within a GeoTIFF image.

       • -md5: the output report will include an MD5 checksum  ⟨http://en.wikipedia.org/wiki/MD5⟩  computed  for
         each raster file.

         Please  note: computing the MD5 checksums could require a substantial amount of time, most notably when
         many hundredth huge-sized files are to be scanned.

       theoutputreport.  The report created by rl2sniff simply corresponds to a TXT/TAB being printed  on  the
       stdout file.  The report's columns are as follows:

       • columns always supported for both georeferenced and non-georeferenced rasters:

         • image_format: e.g. GeoTIFF, TIFF+TFW or ASCII Grid.

         • MD5_checksum: may be NULL is the corresponding option wasn't activated.

         • image_path: the absolute path leading to the raster file.

         • width and height: horizontal and vertical dimensions (in pixels).

         • sample_type, pixel_type and bands: e.g. UINT8, RGB, 3.

         • no_data: value corresponding to NO-DATA pixels (currently supported only for ASCII Grids).

         • compression: e.g. DEFLATE or FAX4; NONE if uncompressed.

       • columns supported only for raster of the georeferenced type:

         • srid: the declared SRID value; -1 if unknown / unspecified.

         • x_resolution and y_resolution: horizontal and vertical pixel resolution.

         • min_x, min_y, max_x and max_y: extreme points of the raster's bounding box aka BBOX.

       rl2sniff - Sniffer tool for RasterLite2

-h, --help
              print usage information

       -srcpathname, --src-pathpathname
              single Image/Raster path

       -dirpathname, --dir-pathpathname
              directory path

       -extextension, --file-extextension
              file extension (e.g. .tif)

       -wf, --worldfile
              requires a Worldfile

       -md5, --md5-checksum
              enabling MD5 checksums

                                                  06 March 2025                                      rl2sniff(1)

rl2sniff [ARGLIST]