tabootv: 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/tabootv - from package: python-taboot

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

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