uuxqt: 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/uuxqt - from package: uucp

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

On Debian possible default full paths are:

/usr/sbin/uuxqt - from package: uucp

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

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