snaptool: 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/snaptool - from package: snap

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

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