How To Install elpa-pcre2el on Ubuntu 20.04
Introduction
In this tutorial we learn how to install elpa-pcre2el
on Ubuntu 20.04.
What is elpa-pcre2el
elpa-pcre2el is:
This package provides
pcre2el' or
rxt’ (RegeXp Translator or RegeXp Tools), a utility for working with regular expressions in Emacs, based on a recursive-descent parser for regexp syntax. In addition to converting (a subset of) PCRE syntax into its Emacs equivalent, it can do the following:
- convert Emacs syntax to PCRE;
- convert either syntax to `rx’, an S-expression based regexp syntax untangle complex regexps by;
- showing the parse tree in `rx’ form and highlighting the;
- corresponding chunks of code show the complete list of strings (productions) matching a regexp, provided the list is finite;
- provide live font-locking of regexp syntax (so far only for Elisp buffers).
There are three methods to install elpa-pcre2el
on Ubuntu 20.04. We can use apt-get
, apt
and aptitude
. In the following sections we will describe each method. You can choose one of them.
Install elpa-pcre2el Using apt-get
Update apt database with apt-get
using the following command.
sudo apt-get update
After updating apt database, We can install elpa-pcre2el
using apt-get
by running the following command:
sudo apt-get -y install elpa-pcre2el
Install elpa-pcre2el Using apt
Update apt database with apt
using the following command.
sudo apt update
After updating apt database, We can install elpa-pcre2el
using apt
by running the following command:
sudo apt -y install elpa-pcre2el
Install elpa-pcre2el 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. Update apt database with aptitude
using the following command.
sudo aptitude update
After updating apt database, We can install elpa-pcre2el
using aptitude
by running the following command:
sudo aptitude -y install elpa-pcre2el
How To Uninstall elpa-pcre2el on Ubuntu 20.04
To uninstall only the elpa-pcre2el
package we can use the following command:
sudo apt-get remove elpa-pcre2el
Uninstall elpa-pcre2el And Its Dependencies
To uninstall elpa-pcre2el
and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove elpa-pcre2el
Remove elpa-pcre2el Configurations and Data
To remove elpa-pcre2el
configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge elpa-pcre2el
Remove elpa-pcre2el configuration, data, and all of its dependencies
We can use the following command to remove elpa-pcre2el
configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge elpa-pcre2el
References
Summary
In this tutorial we learn how to install elpa-pcre2el
package on Ubuntu 20.04 using different package management tools: apt
, apt-get
and aptitude
.