tkabber-remote: 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/tkabber-remote - from package: tkabber

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

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