pmall: 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/pmall - from package: perl-pmtools

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

On Debian possible default full paths are:

/usr/bin/pmall - from package: pmtools

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

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