import_pootle_prefs: 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/import_pootle_prefs - from package: pootle

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