privoxy-log-parser: command not found

Have You tried accessing the binary with the full path?

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/bin/privoxy-log-parser - from package: privoxy

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