info: 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 CentOS possible default full paths are:

/usr/bin/info - from package: info

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/info - from package: info

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

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