gnome-documents: 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/gnome-documents - from package: gnome-documents

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

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