pod2usage: 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/pod2usage - from package: perl

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

On Debian possible default full paths are:

/usr/bin/pod2usage - from package: perl

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

Error in other languages:
pod2usage: bevel nie gevind nie
pod2usage: comandă negăsită
pod2usage: comando não encontrado
pod2usage: commande introuvable
pod2usage: command not found
pod2usage: käsku ei ole
pod2usage: không tìm thấy lệnh
pod2usage: komanda nerasta
pod2usage: Kommando nicht gefunden.
pod2usage: kommandot finns inte
pod2usage: komut yok
pod2usage: nie znaleziono polecenia
pod2usage: níor aimsíodh an t-ordú
pod2usage: no se encontró la orden
pod2usage: no s'ha trobat l'ordre
pod2usage: opdracht niet gevonden
pod2usage: parancs nem található
pod2usage: perintah tidak ditemukan
pod2usage: príkaz nenájdený
pod2usage: příkaz nenalezen
pod2usage: команда не найдена
pod2usage: командата не е открита
pod2usage: 命令找不到
pod2usage: コマンドが見つかりません