fbterm_ucimf: 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/fbterm_ucimf - from package: fbterm-ucimf

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

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