I have a bash script I'm trying to distribute to people in my class. The script requires some dependencies to operate, namely wkhtmltopdf and pdfkit. I can install those dependencies with homebrew, but I can't assume users have that. I've written an install/uninstall script for Mac, and my partner made one for Linux, but both of them seem so hacky to me. I would like a more robust approach for distributing my bash script with its dependencies.Here is the Mac OS install/uninstall script:#!/usr/bin/env basharg=$1uninstall=-uif [[ ${arg} == *$uninstall* ]];then    echo Uninstalling eesubmit...    echo Removing the shortcut...    sudo rm /usr/bin/eesubmit    echo The eesubmit shortcut has been removed    echo Removing the source code and username file for eesubmit...    rm -rf ~/.eesubmit/    echo The source code and username file for eesubmit has been removed    echo eesubmit requires other dependencies that may have been installed when eesubmit was installed    echo Some of these dependencies may have already been installed    echo Please review these dependencies and tell us if you want to remove them    echo Do you want to uninstall pdfkit (a Python package that runs on top of wkhtmltopdf)? (y/n)    read uninstallPdfkit    if [ ${uninstallPdfkit} = y ];    then        pip uninstall pdfkit    fi    echo Do you want to uninstall wkhtmltopdf (a library for converting HTML to PDFs)? (y/n)    read uninstallWkhtmltopdf    if [ ${uninstallWkhtmltopdf} = y ];    then        brew uninstall pdfkit --force    fi    echo Do you want to uninstall homebrew (a package manager for Mac OS)? (y/n)    read uninstallHomebrew    if [ ${uninstallHomebrew} = y ];    then        ruby -e $(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)    fi    echo Uninstallation complete!else    echo Installing homebrew (a package manager for Mac OS)...    ruby -e $(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)    echo Homebrew installation complete    echo Installing wkhtmltopdf (a library for converting HTML to PDFs)...    brew install wkhtmltopdf    echo wkhtmltopdf installation complete    echo Installing pdfkit (a Python package that runs on top of wkhtmltopdf)...    pip install pdfkit    echo pdfkit installation complete    echo Adding a shortcut for eesubmit (this may require your password)...    if [ -f ~/.eesubmit/eesubmit/main/submitting.bash ];    then        sudo cp ~/.eesubmit/eesubmit/main/submitting.bash /usr/bin/eesubmit        echo The shortcut has been created        echo Installation complete!    else        echo Error: The main eesubmit script is not installed 1>&2        echo Are you sure you cloned the repository correctly?        echo Try running these commands        echo     mkdir -p ~/.eesubmit        echo     cd ~/.eesubmit        echo     git clone https://github.com/DakotaAndMichael/eesubmit.git        echo Then, run this script again    fifi
Installation script for Mac OS tool
beginner;bash;installer
The first thing I can see that should be changed is to add some checks before/after removing files.  As it is currently written, the script will break if it goes to remove a file that isn't there.  So, for instance, if the uninstall is interrupted halfway (computer unplugged, process killed, whatever), then a subsequent run of the script will throw an error and the last part of the script will never be executed.For simple checks like these, and for that matter for the single-command if checks you already have, you should just use && and || instead.if [ ${uninstallPdfkit} = y ];then    pip uninstall pdfkitfiand[ ${uninstallPdfkit} = y ] && pip uninstall pdfkitare exactly equivalent.  Funny thing in this example is that the braces {} are completely unnecessary, as are the double quotes around y, but there should be doublequotes around the variable for safety:[ $uninstallPdfkit = y ] && pip uninstall pdfkitSo instead of:rm -rf ~/.eesubmit/echo The source code and username file for eesubmit has been removedYou should use:[ -e ~/.eesubmit ] && rm -rf ~/.eesubmit && echo 'The source code and username file for eesubmit has been removed'This is just scratching the surface; here are some other partial thoughts that could be expanded into further detail:Why do you echo Uninstallation complete if the user decides not to uninstall?read has a bunch of flags that would be useful; in particular -p to specify a prompt message.  (Use quotes!)Your big error message has only the first line redirected to stderr.  Consider using single quotes (since you don't need variable expansion) and just have it include multiple lines with one echo command, then redirect to stderr only once for all of it.You say a shortcut is being created, but you used cp instead of ln -s target linkname.  Also you shouldn't need to use sudo at all.Hope this helps.