csc: 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/csc - from package: chicken

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

On Debian possible default full paths are:

/usr/bin/csc - from package: chicken-bin

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

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