backtranambig: command not found

Have You tried accessing the binary with the full path?

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/backtranambig - from package: emboss

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