shpcat: 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/shpcat - from package: shapelib

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

On Debian possible default full paths are:

/usr/bin/shpcat - from package: shapelib

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

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