dbfinfo: 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/dbfinfo - from package: shapelib

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

On Debian possible default full paths are:

/usr/bin/dbfinfo - from package: shapelib

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

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