zeitgeist-explorer: command not found

Have You tried accessing the binary with the full path?

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/zeitgeist-explorer - from package: zeitgeist-explorer

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