cif2c: 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 CentOS possible default full paths are:

/usr/bin/cif2c - from package: CBFlib

You may install the required package with command yum install {package}

Error in other languages:
cif2c: bevel nie gevind nie
cif2c: comandă negăsită
cif2c: comando não encontrado
cif2c: commande introuvable
cif2c: command not found
cif2c: käsku ei ole
cif2c: không tìm thấy lệnh
cif2c: komanda nerasta
cif2c: Kommando nicht gefunden.
cif2c: kommandot finns inte
cif2c: komut yok
cif2c: nie znaleziono polecenia
cif2c: níor aimsíodh an t-ordú
cif2c: no se encontró la orden
cif2c: no s'ha trobat l'ordre
cif2c: opdracht niet gevonden
cif2c: parancs nem található
cif2c: perintah tidak ditemukan
cif2c: príkaz nenájdený
cif2c: příkaz nenalezen
cif2c: команда не найдена
cif2c: командата не е открита
cif2c: 命令找不到
cif2c: コマンドが見つかりません