shrinksafe: 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/shrinksafe - from package: shrinksafe

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

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