pmtrace: 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/pmtrace - from package: pcp

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

On Debian possible default full paths are:

/usr/bin/pmtrace - from package: pcp

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

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