optcomp-r: 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/optcomp-r - from package: optcomp

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

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