evolution-import-rss: 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/bin/evolution-import-rss - from package: evolution-rss

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

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