shprewind: 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/shprewind - from package: shapelib

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

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