unicfgtst: 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/unicfgtst - from package: unicornscan

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