parse_profile.pl: 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 Debian possible default full paths are:

/usr/share/doc/librdf-query-perl/examples/bin/parse_profile.pl - from package: librdf-query-perl

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

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