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Asked: 2017-07-04 05:37:31 +0800 CST

How do I know what programming languages are pre-installed in Ubuntu?

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How do I know what programming languages (I mean their compilers and interpreters) are already pre-installed in Ubuntu? For example, I see that Python is here. If I type python command in the terminal, it turns out that I have python version 2.7.12. But what about other popular programming and scripting languages like Ruby, Perl, C, Lua, awk, Java, PHP, etc. etc. Should I try to launch them in the terminal or try something like language --version one by one, or is there a better way to know this?

python

4 Answers

  1. Best Answer

    An article in Ubuntu's own help pages points out five (perl, python, ruby, awk, and sed) are installed by default.

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  2. As of latest LTS release , 16.04, Ubuntu comes with Perl 5, GNU awk (used to be mawk), Python 2 and 3 by default. Not entirely sure about C compiler. You may need build-essential package installed

    For everything else, use apt-cache policy **package-name** to see if it is installed. You can also view the release manifest files as described in this answer:https://askubuntu.com/a/48894/295286

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  3. I wrote a small bash script. Its very basic but its something

    #!/usr/bin/env bash

languages="php python go perl mysql c c++ java"
binaries="ls /usr/bin"

for i in $languages ; do
    for j in $($binaries); do
        if [[ $i == $j ]]; then
            echo $i
        fi
    done
done
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  4. type whereis [program]. if nothing shows up then it is not installed. A rather silly way,but still usable.

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