xtermcontrol: 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/bin/xtermcontrol - from package: xtermcontrol

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

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