partclone.chkimg: 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/sbin/partclone.chkimg - from package: partclone

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

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