ipa-rmkeytab: 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/ipa-rmkeytab - from package: ipa-client

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

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