tracker-import: 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/tracker-import - from package: tracker-utils

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

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