Visit Our UNIX and Linux User Community

Linux and UNIX Man Pages

Test Your Knowledge in Computers #304
Difficulty: Easy
sed is a stream editor and is used to perform basic text transformations on an input stream (a file or input from a pipeline).
True or False?
Linux & Unix Commands - Search Man Pages

iinfo(1) [redhat man page]

IINFO(1)                                                      General Commands Manual                                                     IINFO(1)

NAME
iinfo - print information about images SYNOPSIS
iinfo [options] files... DESCRIPTION
The iinfo utility is invoked as follows: iinfo [options] filename... Where filename (and any following strings) names the image file(s) whose information should be printed. The image files may be of any for- mat recognized by OpenImageIO (i.e., for which ImageInput plugins are available). In its most basic usage, it simply prints the resolution, number of channels, pixel data type, and file format type of each of the files listed: $ iinfo img_6019m.jpg grid.tif lenna.png img_6019m.jpg : 1024 x 683, 3 channel, uint8 jpeg grid.tif : 512 x 512, 3 channel, uint8 tiff lenna.png : 120 x 120, 4 channel, uint8 png For a complete description, see /usr/share/doc/libopenimageio-dev/openimageio.pdf.gz. OPTIONS
--help Print help message -v Verbose output -m %s Metadata names to print (default: all) -f Prefix each line with the filename -s Sum the image sizes -a Print info about all subimages --hash Print SHA-1 hash of pixel values --stats Print image pixel statistics (data window) SEE ALSO
iconvert(1), idiff(1), igrep(1), iprocess(1), iv(1), maketx(1), oiiotool(1). AUTHOR
OpenImageIO was written by Larry Gritz and the other authors and contributors. This manual page was written by IRIE Shinsuke <irieshinsuke@yahoo.co.jp>, for the Debian project (and may be used by others). May 19, 2012 IINFO(1)

Check Out this Related Man Page

IGREP(1)                                                      General Commands Manual                                                     IGREP(1)

NAME
igrep - search images for matching metadata SYNOPSIS
igrep [options] pattern files... DESCRIPTION
The igrep utility is invoked as follows: igrep [options] pattern filename... Where pattern is a POSIX.2 regular expression (just like the Unix/Linux grep(1) command), and filename (and any following names) specify images or directories that should be searched. An image file will "match" if any of its metadata contains values contain substring that are recognized regular expression. The image files may be of any format recognized by OpenImageIO (i.e., for which ImageInput plugins are available). Example: $ igrep Jack *.jpg bar.jpg: Keywords = Carly; Jack foo.jpg: Keywords = Jack test7.jpg: ImageDescription = Jack on vacation For a complete description, see /usr/share/doc/libopenimageio-dev/openimageio.pdf.gz. OPTIONS
--help Print help message -i Ignore upper/lower case distinctions -v Invert match (select non-matching files) -E Pattern is an extended regular expression -f Match against file name as well as metadata -l List the matching files (no detail) -r Recurse into directories -d Print directories (when recursive) -a Search all subimages of each file SEE ALSO iconvert(1), idiff(1), iinfo(1), iprocess(1), iv(1), maketx(1), oiiotool(1). AUTHOR
OpenImageIO was written by Larry Gritz and the other authors and contributors. This manual page was written by IRIE Shinsuke <irieshinsuke@yahoo.co.jp>, for the Debian project (and may be used by others). May 19, 2012 IGREP(1)

Featured Tech Videos