abicheck: 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/abicheck - from package: abicheck

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

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