bookinfo: 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 Debian possible default full paths are:

/usr/bin/bookinfo - from package: epwutil

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

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