shapeclustering: 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/shapeclustering - from package: tesseract-ocr

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

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