nytprofcalls: 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/nytprofcalls - from package: perl-Devel-NYTProf

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

On Debian possible default full paths are:

/usr/bin/nytprofcalls - from package: libdevel-nytprof-perl

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

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