hmm2fetch: 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/hmm2fetch - from package: hmmer2

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

Error in other languages:
hmm2fetch: bevel nie gevind nie
hmm2fetch: comandă negăsită
hmm2fetch: comando não encontrado
hmm2fetch: commande introuvable
hmm2fetch: command not found
hmm2fetch: käsku ei ole
hmm2fetch: không tìm thấy lệnh
hmm2fetch: komanda nerasta
hmm2fetch: Kommando nicht gefunden.
hmm2fetch: kommandot finns inte
hmm2fetch: komut yok
hmm2fetch: nie znaleziono polecenia
hmm2fetch: níor aimsíodh an t-ordú
hmm2fetch: no se encontró la orden
hmm2fetch: no s'ha trobat l'ordre
hmm2fetch: opdracht niet gevonden
hmm2fetch: parancs nem található
hmm2fetch: perintah tidak ditemukan
hmm2fetch: príkaz nenájdený
hmm2fetch: příkaz nenalezen
hmm2fetch: команда не найдена
hmm2fetch: командата не е открита
hmm2fetch: 命令找不到
hmm2fetch: コマンドが見つかりません