c2bimport: 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/c2bimport - from package: cb2bib

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

Error in other languages:
c2bimport: bevel nie gevind nie
c2bimport: comandă negăsită
c2bimport: comando não encontrado
c2bimport: commande introuvable
c2bimport: command not found
c2bimport: käsku ei ole
c2bimport: không tìm thấy lệnh
c2bimport: komanda nerasta
c2bimport: Kommando nicht gefunden.
c2bimport: kommandot finns inte
c2bimport: komut yok
c2bimport: nie znaleziono polecenia
c2bimport: níor aimsíodh an t-ordú
c2bimport: no se encontró la orden
c2bimport: no s'ha trobat l'ordre
c2bimport: opdracht niet gevonden
c2bimport: parancs nem található
c2bimport: perintah tidak ditemukan
c2bimport: príkaz nenájdený
c2bimport: příkaz nenalezen
c2bimport: команда не найдена
c2bimport: командата не е открита
c2bimport: 命令找不到
c2bimport: コマンドが見つかりません