fst-infl2-daemon: 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/fst-infl2-daemon - from package: sfst

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

Error in other languages:
fst-infl2-daemon: bevel nie gevind nie
fst-infl2-daemon: comandă negăsită
fst-infl2-daemon: comando não encontrado
fst-infl2-daemon: commande introuvable
fst-infl2-daemon: command not found
fst-infl2-daemon: käsku ei ole
fst-infl2-daemon: không tìm thấy lệnh
fst-infl2-daemon: komanda nerasta
fst-infl2-daemon: Kommando nicht gefunden.
fst-infl2-daemon: kommandot finns inte
fst-infl2-daemon: komut yok
fst-infl2-daemon: nie znaleziono polecenia
fst-infl2-daemon: níor aimsíodh an t-ordú
fst-infl2-daemon: no se encontró la orden
fst-infl2-daemon: no s'ha trobat l'ordre
fst-infl2-daemon: opdracht niet gevonden
fst-infl2-daemon: parancs nem található
fst-infl2-daemon: perintah tidak ditemukan
fst-infl2-daemon: príkaz nenájdený
fst-infl2-daemon: příkaz nenalezen
fst-infl2-daemon: команда не найдена
fst-infl2-daemon: командата не е открита
fst-infl2-daemon: 命令找不到
fst-infl2-daemon: コマンドが見つかりません