How To Install igrep on Ubuntu 21.04

In this guide, we’ll discuss How To Install igrep on Ubuntu 21.04. Also, we will demonstrate how to uninstall and update igrep.

One-liner install command

For those in a hurry, here's a one-line installation command:

sudo apt-get update && sudo apt -y install openimageio-tools

But if you are interested in the detailed steps with descriptions, the following information is for you.

What is igrep and what are the ways to install it?

Before beginning this tutorial, you will need access to a server or computer running Ubuntu 21.04. This guide was written specifically with a server running Ubuntu 21.04 in mind, although it should also work on older, supported versions of the operating system.

Also, make sure you are running a regular, non-root user with sudo privileges configured on your server. When you have an account available, log in as your non-root user to begin.

There are several ways to install igrep on Ubuntu 21.04. You can use (links are clickable):

In the following sections, we will describe each method in detail. You can choose one of them or refer to the recommended one.

Install igrep using apt-get

First, update apt database with apt-get using the following command.

sudo apt-get update

After updating apt-get database, You can install igrep using apt by running the following command:

sudo apt -y install openimageio-tools

Install igrep using apt

Because igrep is available in Ubuntu 21.04’s default repositories, it is possible to install it from these repositories using the apt packaging system.

To begin, update apt database with apt using the following command.

sudo apt update

After updating apt database, You can install igrep using apt by running the following command:

sudo apt -y install openimageio-tools

Install igrep using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu 21.04. Update apt database with aptitude using the following command.

sudo aptitude update

After updating aptitude database, You can install igrep by running the following command:

sudo aptitude -y install openimageio-tools

How to upgrade (update) a single package igrep using apt-get?

First, you will need to update packages index. Run update command as usual:

sudo apt-get update

Next, to upgrade only the igrep, e.g. single package, you should use the following format with the apt-get command/apt command:

sudo apt-get --only-upgrade install openimageio-tools

Note that this command will not install any new packages! If you wish to install the package if it doesn't exist you may leave out --only-upgrade part.

How To Uninstall igrep from Ubuntu 21.04

To uninstall only the igrep package you can execute the following command:

sudo apt-get remove openimageio-tools

Uninstall igrep and all its dependencies

To uninstall igrep and its dependencies that are no longer needed by Ubuntu 21.04, you can use the command below:

sudo apt-get -y autoremove openimageio-tools

Remove igrep with all configurations and data

To remove igrep configuration and data from your system you can run the following purge command:

sudo apt-get -y purge openimageio-tools

Remove igrep completely (configurations, data and all of its dependencies)

And lastly, you can run the next command to remove absolutely everything related to igrep package, e.g.: configurations, data and all of its dependencies. Just use this command:

sudo apt-get -y autoremove --purge openimageio-tools

Extra info and code examples

OpenImageIO is a library for reading and writing images, and a bunch of related classes, utilities, and applications. Main features include: * Extremely simple but powerful ImageInput and ImageOutput APIs for reading and writing 2D images that is format agnostic -- that is, a "client app" doesn't need to know the details about any particular image file formats. Specific formats are implemented by DLL/DSO plugins. * Format plugins for TIFF, JPEG/JFIF, OpenEXR, PNG, HDR/RGBE, Targa, JPEG-2000, DPX, Cineon, FITS, BMP, ICO, RMan Zfile, Softimage PIC, DDS, SGI, PNM/PPM/PGM/PBM, Field3d, WebP. More coming! The plugins are really good at understanding all the strange corners of the image formats, and are very careful about preserving image metadata (including Exif, GPS, and IPTC data). * An ImageCache class that transparently manages a cache so that it can access truly vast amounts of image data (thousands of image files totaling hundreds of GB) very efficiently using only a tiny amount (tens of megabytes at most) of runtime memory. Additionally, a TextureSystem class provides filtered MIP-map texture lookups, atop the nice caching behavior of ImageCache. * Several image tools based on these classes, including iinfo (print detailed info about images), iconvert (convert among formats, data types, or modify metadata), idiff (compare images),igrep (search images for matching metadata). Because these tools are based on ImageInput/ImageOutput, they work with any image formats for which ImageIO plugins are available. * A really nice image viewer, iv, also based on OpenImageIO classes (and so will work with any formats for which plugins are available). * Supported on Linux, OS X, and Windows. * All available under the BSD license, so you may modify it and use it in both open source or proprietary apps. This package contains command line tools, including iv image viewer.


You now have a full guide on how to install igrep using apt, apt-get and aptitude tools. Also, we showed how to update as a single package and different ways to uninstall the igrep from Ubuntu 21.04.

See also:

How To Install igrep on Kali Linux

How To Install igrep on CentOS 8

How To Install igrep on Ubuntu 22.04

How To Install igrep on Ubuntu 21.04

How To Install igrep on Debian 11

How To Install igrep on Fedora 34