ocs-resize-part: 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/sbin/ocs-resize-part - from package: clonezilla

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