halibut: 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 CentOS possible default full paths are:

/usr/bin/halibut - from package: halibut

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/halibut - from package: halibut

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

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