mimeexplode: 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/mimeexplode - from package: perl-MIME-tools

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

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