wistrut: command not found

Have You tried accessing the binary with the full path?

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/wistrut - from package: wmii

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