bibtexconv-odt: 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/bibtexconv-odt - from package: bibtexconv

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

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