uusched: 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/sbin/uusched - from package: uucp

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

On Debian possible default full paths are:

/usr/sbin/uusched - from package: uucp

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

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