fts-config-set: 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/fts-config-set - from package: fts-client

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

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