tesjoin: 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/lib/voxbo/bin/tesjoin - from package: voxbo

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

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