higan-accuracy: 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/higan-accuracy - from package: higan

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

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