samizdat-import-feeds: 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/samizdat-import-feeds - from package: samizdat

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