heimdal-klist: 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-klist - from package: heimdal-workstation

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

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