routeB.sh: 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/routeB.sh - from package: mmseq

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

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