balignsim: 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/balignsim - from package: bfast

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

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