apachedex-parallel-parse: 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/apachedex-parallel-parse - from package: apachedex

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

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