augtool: 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/augtool - from package: augeas

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

On Debian possible default full paths are:

/usr/bin/augtool - from package: augeas-tools

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

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