makenucseq: 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/makenucseq - from package: emboss

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

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