rancid-run: 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/rancid-run - from package: rancid

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

On Debian possible default full paths are:

/usr/bin/rancid-run - from package: rancid
/usr/lib/rancid/bin/rancid-run - from package: rancid

You may install the required package with command apt-get install {package}

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