gnome-keyring: 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/gnome-keyring - from package: gnome-keyring

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

On Debian possible default full paths are:

/usr/bin/gnome-keyring - from package: gnome-keyring

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

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