loadunimap: 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/loadunimap - from package: kbd

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

On Debian possible default full paths are:

/usr/bin/loadunimap - from package: kbd

You may install the required package with command apt-get install {package}

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