batch_rubber_sheet: 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/batch_rubber_sheet - from package: libvips-tools

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

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