Multiuser plugin updater

#!/bin/sh
#usage ./update-plugin plugin-name pluginver
function updateit {

        pluginpath=$1
        pluginname=$2
        user=$3

        pluginmain=${pluginpath%$pluginname}

        echo "Updating plugin for $user"

        $(rm -rf $pluginpath)
        $(cp -R /opt/$pluginname/ $pluginmain)
        $(chown -R $user:$user $pluginpath)
        $(find $pluginpath -type f -print0 | xargs -0 chmod 0644)
        $(find $pluginpath -type d -print0 | xargs -0 chmod 0755)

}

plugin=$1
pluginver=$2

usernames=$(find /var/cpanel/users -type f -print0 | xargs -n 1 -0 echo)
prefix="/var/cpanel/users/"

$(rm -rf /opt/"$plugin"*)
#$(rm -rf /opt/$plugin.zip)
$(wget -O /opt/$plugin.zip https://downloads.wordpress.org/plugin/$plugin.$pluginver.zip)
$(unzip /opt/"$plugin".zip -d /opt)

for i in $usernames; do

        username=${i#$prefix}

        path=$(find /home/$username -type d -name "$plugin")

        if echo $path | grep -E '[ "]' >/dev/null
        then

                for pp in $path; do
                        updateit $pp $plugin $username
                done

        else
                if [[ $path = *[!\ ]* ]]; then
                        updateit $path $plugin $username
                fi

        fi


done