args: 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/args - from package: ucommon-bin

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

On Debian possible default full paths are:

/usr/bin/args - from package: ucommon-utils

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

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