getLinks: 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/getLinks - from package: cjdns-python

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

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