kstash: 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/sbin/kstash - from package: heimdal-server

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

On Debian possible default full paths are:

/usr/sbin/kstash - from package: heimdal-kdc
/usr/lib/debug/usr/sbin/kstash - from package: heimdal-dbg

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

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