uucico: 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/uucico - from package: uucp

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

On Debian possible default full paths are:

/usr/sbin/uucico - from package: uucp

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

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