bison: 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/bison - from package: bison

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

On Debian possible default full paths are:

/usr/bin/bison - from package: bison
/usr/bin/bison - from package: bison++

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

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