rabema_evaluate: 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/rabema_evaluate - from package: seqan-apps
/usr/lib/seqan/bin/rabema_evaluate - from package: seqan-apps

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

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