ifind: 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/ifind - from package: sleuthkit

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

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