frescobaldi: 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/frescobaldi - from package: frescobaldi

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

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