damnit: 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/sbin/damnit - from package: gnarwl

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

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