t1libconfig: 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/sbin/t1libconfig - from package: t1lib

You may install the required package with command yum install {package}
Error in other languages:
t1libconfig: bevel nie gevind nie
t1libconfig: comandă negăsită
t1libconfig: comando não encontrado
t1libconfig: commande introuvable
t1libconfig: command not found
t1libconfig: käsku ei ole
t1libconfig: không tìm thấy lệnh
t1libconfig: komanda nerasta
t1libconfig: Kommando nicht gefunden.
t1libconfig: kommandot finns inte
t1libconfig: komut yok
t1libconfig: nie znaleziono polecenia
t1libconfig: níor aimsíodh an t-ordú
t1libconfig: no se encontró la orden
t1libconfig: no s'ha trobat l'ordre
t1libconfig: opdracht niet gevonden
t1libconfig: parancs nem található
t1libconfig: perintah tidak ditemukan
t1libconfig: príkaz nenájdený
t1libconfig: příkaz nenalezen
t1libconfig: команда не найдена
t1libconfig: командата не е открита
t1libconfig: 命令找不到
t1libconfig: コマンドが見つかりません