awesome-client: 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/awesome-client - from package: awesome

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

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