geomatch: command not found

Have You tried accessing the binary with the full path?

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/lib/cmtk/bin/geomatch - from package: cmtk

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