debci: 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

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/debci - from package: debci
/usr/share/debci/bin/debci - from package: debci

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