How to do Arithmetic Operations in Ansible

bash-completion

 

Installation

The easiest way to install this software is to use a package; refer to Repology for a comprehensive list of operating system distributions, package names, and available versions.
Depending on the package, you may still need to source it from either /etc/bashrc or ~/.bashrc (or any other file sourcing those). You can do this by simply using:

# Use bash-completion, if available
[[ $PS1 && -f /usr/share/bash-completion/bash_completion ]] && \
    . /usr/share/bash-completion/bash_completion

(if you happen to have only bash >= 4.1 installed, see further if not)
If you don't have the package readily available for your distribution, or you simply don't want to use one, you can install bash completion using the standard commands for GNU autotools packages:

autoreconf -i  # if not installing from prepared release tarball
./configure
make
make check # optional, requires python3 with pytest >= 3.6 and pexpect, dejagnu, and tcllib
make install # as root

These commands install the completions and helpers, as well as a profile.d script that loads bash_completion where appropriate.
If your system does not use the profile.d directory (usually below /etc) mechanism—i.e. does not automatically source shell scripts in it—you can source the $sysconfdir/profile.d/bash_completion.sh script in /etc/bashrc or ~/.bashrc.
The profile.d script provides a configuration file hook that can be used to prevent loading bash_completion on per user basis when it's installed system wide. To do this:

1. Turn off programmable completion with shopt -u progcomp in $XDG_CONFIG_HOME/bash_completion (or ~/.config/bash_completion if $XDG_CONFIG_HOME is not set)
2. Turn it back on (for example in ~/.bashrc) if you want to use programmable completion for other purposes.

https://github.com/scop/bash-completion