clc-slime: 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/clc-slime - from package: common-lisp-controller

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

On Debian possible default full paths are:

/usr/bin/clc-slime - from package: common-lisp-controller

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

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