basexclient: 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/bin/basexclient - from package: basex

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