apbs-multivalue: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/apbs-multivalue - from package: apbs-tools

You may install the required package with command yum install {package}

Error in other languages:
apbs-multivalue: bevel nie gevind nie
apbs-multivalue: comandă negăsită
apbs-multivalue: comando não encontrado
apbs-multivalue: commande introuvable
apbs-multivalue: command not found
apbs-multivalue: käsku ei ole
apbs-multivalue: không tìm thấy lệnh
apbs-multivalue: komanda nerasta
apbs-multivalue: Kommando nicht gefunden.
apbs-multivalue: kommandot finns inte
apbs-multivalue: komut yok
apbs-multivalue: nie znaleziono polecenia
apbs-multivalue: níor aimsíodh an t-ordú
apbs-multivalue: no se encontró la orden
apbs-multivalue: no s'ha trobat l'ordre
apbs-multivalue: opdracht niet gevonden
apbs-multivalue: parancs nem található
apbs-multivalue: perintah tidak ditemukan
apbs-multivalue: príkaz nenájdený
apbs-multivalue: příkaz nenalezen
apbs-multivalue: команда не найдена
apbs-multivalue: командата не е открита
apbs-multivalue: 命令找不到
apbs-multivalue: コマンドが見つかりません