heimdal-kinit: 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/heimdal-kinit - from package: heimdal-workstation

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

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