info2man: 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/info2man - from package: info2man

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

Error in other languages:
info2man: bevel nie gevind nie
info2man: comandă negăsită
info2man: comando não encontrado
info2man: commande introuvable
info2man: command not found
info2man: käsku ei ole
info2man: không tìm thấy lệnh
info2man: komanda nerasta
info2man: Kommando nicht gefunden.
info2man: kommandot finns inte
info2man: komut yok
info2man: nie znaleziono polecenia
info2man: níor aimsíodh an t-ordú
info2man: no se encontró la orden
info2man: no s'ha trobat l'ordre
info2man: opdracht niet gevonden
info2man: parancs nem található
info2man: perintah tidak ditemukan
info2man: príkaz nenájdený
info2man: příkaz nenalezen
info2man: команда не найдена
info2man: командата не е открита
info2man: 命令找不到
info2man: コマンドが見つかりません