How To Install yamllint on CentOS 8
yamllint is A linter for YAML files
Introduction
In this tutorial we learn how to install yamllint on CentOS 8.
What is yamllint
A linter for YAML files. yamllint does not only check for syntax validity, but for weirdnesses like key repetition and cosmetic problems such as lines length, trailing spaces, indentation, etc.
We can use yum or dnf to install yamllint on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install yamllint.
Install yamllint on CentOS 8 Using dnf
Update yum database with dnf using the following command.
sudo dnf makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install yamllint using dnf by running the following command:
sudo dnf -y install yamllint
Install yamllint on CentOS 8 Using yum
Update yum database with yum using the following command.
sudo yum makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install yamllint using yum by running the following command:
sudo yum -y install yamllint
How To Uninstall yamllint on CentOS 8
To uninstall only the yamllint package we can use the following command:
sudo dnf remove yamllint
yamllint Package Contents on CentOS 8
/usr/bin/yamllint
/usr/lib/python3.6/site-packages/yamllint
/usr/lib/python3.6/site-packages/yamllint-1.26.0-py3.6.egg-info
/usr/lib/python3.6/site-packages/yamllint-1.26.0-py3.6.egg-info/PKG-INFO
/usr/lib/python3.6/site-packages/yamllint-1.26.0-py3.6.egg-info/SOURCES.txt
/usr/lib/python3.6/site-packages/yamllint-1.26.0-py3.6.egg-info/dependency_links.txt
/usr/lib/python3.6/site-packages/yamllint-1.26.0-py3.6.egg-info/entry_points.txt
/usr/lib/python3.6/site-packages/yamllint-1.26.0-py3.6.egg-info/requires.txt
/usr/lib/python3.6/site-packages/yamllint-1.26.0-py3.6.egg-info/top_level.txt
/usr/lib/python3.6/site-packages/yamllint/__init__.py
/usr/lib/python3.6/site-packages/yamllint/__main__.py
/usr/lib/python3.6/site-packages/yamllint/__pycache__
/usr/lib/python3.6/site-packages/yamllint/__pycache__/__init__.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/__pycache__/__init__.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/__pycache__/__main__.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/__pycache__/__main__.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/__pycache__/cli.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/__pycache__/cli.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/__pycache__/config.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/__pycache__/config.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/__pycache__/linter.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/__pycache__/linter.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/__pycache__/parser.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/__pycache__/parser.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/cli.py
/usr/lib/python3.6/site-packages/yamllint/conf
/usr/lib/python3.6/site-packages/yamllint/conf/default.yaml
/usr/lib/python3.6/site-packages/yamllint/conf/relaxed.yaml
/usr/lib/python3.6/site-packages/yamllint/config.py
/usr/lib/python3.6/site-packages/yamllint/linter.py
/usr/lib/python3.6/site-packages/yamllint/parser.py
/usr/lib/python3.6/site-packages/yamllint/rules
/usr/lib/python3.6/site-packages/yamllint/rules/__init__.py
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/__init__.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/__init__.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/braces.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/braces.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/brackets.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/brackets.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/colons.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/colons.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/commas.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/commas.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/comments.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/comments.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/comments_indentation.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/comments_indentation.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/common.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/common.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/document_end.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/document_end.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/document_start.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/document_start.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/empty_lines.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/empty_lines.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/empty_values.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/empty_values.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/hyphens.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/hyphens.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/indentation.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/indentation.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/key_duplicates.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/key_duplicates.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/key_ordering.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/key_ordering.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/line_length.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/line_length.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/new_line_at_end_of_file.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/new_line_at_end_of_file.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/new_lines.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/new_lines.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/octal_values.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/octal_values.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/quoted_strings.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/quoted_strings.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/trailing_spaces.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/trailing_spaces.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/truthy.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/__pycache__/truthy.cpython-36.pyc
/usr/lib/python3.6/site-packages/yamllint/rules/braces.py
/usr/lib/python3.6/site-packages/yamllint/rules/brackets.py
/usr/lib/python3.6/site-packages/yamllint/rules/colons.py
/usr/lib/python3.6/site-packages/yamllint/rules/commas.py
/usr/lib/python3.6/site-packages/yamllint/rules/comments.py
/usr/lib/python3.6/site-packages/yamllint/rules/comments_indentation.py
/usr/lib/python3.6/site-packages/yamllint/rules/common.py
/usr/lib/python3.6/site-packages/yamllint/rules/document_end.py
/usr/lib/python3.6/site-packages/yamllint/rules/document_start.py
/usr/lib/python3.6/site-packages/yamllint/rules/empty_lines.py
/usr/lib/python3.6/site-packages/yamllint/rules/empty_values.py
/usr/lib/python3.6/site-packages/yamllint/rules/hyphens.py
/usr/lib/python3.6/site-packages/yamllint/rules/indentation.py
/usr/lib/python3.6/site-packages/yamllint/rules/key_duplicates.py
/usr/lib/python3.6/site-packages/yamllint/rules/key_ordering.py
/usr/lib/python3.6/site-packages/yamllint/rules/line_length.py
/usr/lib/python3.6/site-packages/yamllint/rules/new_line_at_end_of_file.py
/usr/lib/python3.6/site-packages/yamllint/rules/new_lines.py
/usr/lib/python3.6/site-packages/yamllint/rules/octal_values.py
/usr/lib/python3.6/site-packages/yamllint/rules/quoted_strings.py
/usr/lib/python3.6/site-packages/yamllint/rules/trailing_spaces.py
/usr/lib/python3.6/site-packages/yamllint/rules/truthy.py
/usr/share/doc/yamllint
/usr/share/doc/yamllint/README.rst
/usr/share/licenses/yamllint
/usr/share/licenses/yamllint/LICENSE
References
Summary
In this tutorial we learn how to install yamllint on CentOS 8 using yum and dnf.
