xstow: 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/xstow - from package: xstow

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

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