gladish: 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/gladish - from package: gladish

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

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