simfqt: 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 CentOS possible default full paths are:

/usr/bin/simfqt - from package: simfqt

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