taxgetspecies: 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

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/taxgetspecies - from package: emboss

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