keytab2shishi: 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 Debian possible default full paths are:

/usr/lib/debug/usr/sbin/keytab2shishi - from package: shishi-dbg
/usr/sbin/keytab2shishi - from package: shishi

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

Error in other languages:
keytab2shishi: bevel nie gevind nie
keytab2shishi: comandă negăsită
keytab2shishi: comando não encontrado
keytab2shishi: commande introuvable
keytab2shishi: command not found
keytab2shishi: käsku ei ole
keytab2shishi: không tìm thấy lệnh
keytab2shishi: komanda nerasta
keytab2shishi: Kommando nicht gefunden.
keytab2shishi: kommandot finns inte
keytab2shishi: komut yok
keytab2shishi: nie znaleziono polecenia
keytab2shishi: níor aimsíodh an t-ordú
keytab2shishi: no se encontró la orden
keytab2shishi: no s'ha trobat l'ordre
keytab2shishi: opdracht niet gevonden
keytab2shishi: parancs nem található
keytab2shishi: perintah tidak ditemukan
keytab2shishi: príkaz nenájdený
keytab2shishi: příkaz nenalezen
keytab2shishi: команда не найдена
keytab2shishi: командата не е открита
keytab2shishi: 命令找不到
keytab2shishi: コマンドが見つかりません