abinit: 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/abinit - from package: abinit

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

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