scotch_acpl: 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 CentOS possible default full paths are:

/usr/bin/scotch_acpl - from package: scotch

You may install the required package with command yum install {package}

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