setpix: 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/setpix - from package: wcstools

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

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