shatag: 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/bin/shatag - from package: shatag

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

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